Question: What professor whose research relates to Russian history teaches at a college which lies beside the River Cam?

Context paragraphs:
Ickleton: Ickleton is a village and civil parish about 9 mi south of Cambridge in Cambridgeshire, England.  The village is beside the River Cam, close to where a southern branch of the Icknield Way crossed the river.  The eastern and southern boundaries of the parish form part of the county boundary with Essex, and the Essex town of Saffron Walden is only about 4.5 mi southeast of the village.

Judith Q. Longyear: Judith Querida Longyear (20 September 1938–13 December 1995) was an American mathematician and professor whose research interests included graph theory and combinatorics.  Longyear earned her Ph.D. from Pennsylvania State University 1972, under the supervision of Sarvadaman Chowla, with a thesis entitled "Tactical Configurations".  She taught mathematics at several universities including California Institute of Technology, Dartmouth College and Wayne State University.  She worked on nested block designs and Hadamard matrices.

Little Haywood: Little Haywood is a village in Staffordshire, England.  For population details as taken at the 2011 census see under Colwich.  It lies beside a main arterial highway, the A51 (linking the English Midlands with Liverpool) but traffic through the village is mainly light, owing to this bypass.  Nearby also is the West Coast Main Line railway, the Trent and Mersey Canal and beside it, the river Trent.  Little Haywood is about 125 mi northwest of London, about 25 mi north of Birmingham, 4 mi northwest of Rugeley and 6 mi east of Stafford.

The Death Dealers: The Death Dealers is a mystery novel by Isaac Asimov published in 1958 (later republished as A Whiff of Death, Asimov's preferred title).  It is about a university professor whose research student dies while conducting an experiment.  The professor attempts to determine if the death was accident, suicide or murder.

Stephen Lovell: Stephen Lovell is professor of modern history at King's College London.  Lovell's research relates to Russian history since 1750, particularly the cultural and social history of 19th and 20th century Russia.  Lovell studied at King's College, Cambridge and the School of Slavonic and East European Studies, which today forms part of University College London.

Elaine F. Walker: Elaine F. Walker is a psychologist and professor whose research focuses on child and adolescent development, and changes in the brain due to adolescence.  Other research interests includes the precursors and neurodevelopment aspects of schizophrenia and other serious mental disorders.  She has taken part in writing over 250 articles and six books related to mental health and neuroscience.  Walker is the Samuel Candler Dobbs Professor of Psychology and Neuroscience at Emory University.

Laura Engelstein: Laura Engelstein is an American historian who specializes in Russian and European history.  She served as Henry S. McNeil Professor Emerita of Russian History at Yale University and taught at Cornell University and Princeton University.  Her numerous publications have included "Moscow, 1905: Working-Class Organization and Political Conflict" (1982); "The Keys to Happiness: Sex and the Search for Modernity in Fin-de-Siecle Russia" (1992); "Castration and the Heavenly Kingdom: A Russian Folktale" (1999); and "Slavophile Empire: Imperial Russia’s Illiberal Path" (2009).  In 2000, she co-edited an essay collection with Stephanie Sandler, "Self and Story in Russian History."  Her research interests lie in the "social and cultural history of late imperial Russia, with attention to the role of law, medicine, and the arts in public life," as well as "themes in the history of gender, sexuality, and religion."  Shortly before fall 2014, Engelstein retired from her work as a professor at Yale University.

King's College, Cambridge: King's College is a constituent college of the University of Cambridge in Cambridge, England.  Formally The King's College of Our Lady and Saint Nicholas in Cambridge, the college lies beside the River Cam and faces out onto King's Parade in the centre of the city.

Ronald Spores: Ronald M. Spores (born January 25, 1931) is an American academic anthropologist, archaeologist and ethnohistorian, whose research career has centered on the pre-Columbian cultures of Mesoamerica.  He is Professor Emeritus of anthropology at Vanderbilt University's College of Arts and Science, where he has been a faculty member for over four decades.  Spores is most renowned for his scholarship conducted on the cultural history of the Oaxacan region in southwestern Mexico.  In particular, he has made many contributions on the Mixtec culture, investigating its archaeological sites, ethnohistorical documents, political economies, and ethnohistory in both the pre-Columbian and Colonial eras.  He was Co-Director of the Proyecto Arqueológico de la Ciudad Yucundaa Pueblo Viejo de Teposcolula, Oaxaca, sponsored by the Fundación Alfredo Harp Helu, the National Geographic Society, and INAH (2004–2010), and currently (2017) directs research on the sixteenth century Casa del Cacique de Yanhuitlan, Oaxaca, and related investigation of the surrounding Prehispanic-Colonial city and region.  He is also Research Associate at the American Museum of Natural History, New York, and at the University of Oregon and investigator on the Proyecto Geoparque de la Mixteca Alta, Universidad Nacional Autónoma de México/UNESCO, centered at Yanhuitlan, Oaxaca (2016-2017).  Recent research relates to the colonial Manila Galleon trade between the Philippines and Acapulco.

Little Chesterford: Little Chesterford is a small village and civil parish in Uttlesford Essex, eastern England and close to the Cambridgeshire border.  It is built principally along a single sunken lane to the east of a chalk stream tributary of the River Cam or Granta and is located 1 km southeast of Great Chesterford and some 5 km northwest of Saffron Walden.  The small hamlet of Springwell is just to the south of the village.  Up the hill to the east is Chesterford Park, with a mid-19th-century mansion in a 250-acre (approx. 100 hectare) estate and now a science park called Chesterford Research Park.  The wide and relatively deep valley of the river Cam provides a rolling landscape of chalky boulder clay with extensive and wide views.  The surrounding farmland is mostly in intensive arable use and except for areas alongside the river, some of which is liable to flooding, is classified as being of grade 2 quality.

Supporting paragraphs: Stephen Lovell King's College, Cambridge
Answer: Stephen Lovell