Original sentence: Guardado first became known in the area of heritage language socialization through his paper entitled "Loss and Maintenance of First Language Skills: Case Studies of Hispanic Families in Vancouver", published in the Canadian Modern Language Review, part of his master’s research and for which he won the CMLR Best Graduate Student Paper in 2001.He was the first scholar to make a link between heritage languages and the development of cosmopolitan identities.His later work has made several contributions to the heritage language socialization area.His recent and current research respectively examines the experiences of Japanese-Canadian mothers in mixed language families in Montreal and the characteristics of mixed language parents across a number of linguistic groups in Alberta
Edited sentence: Guardado first became known in the area of heritage language socialization through his seminal paper entitled " Loss and Maintenance of First Language Skills: Case Studies of Hispanic Families in Vancouver", published in the Canadian Modern Language Review, part of his master’s research and for which he won the CMLR Best Graduate Student Paper in 2001.His later work has made several innovative contributions to the heritage language socialization area.His recent and current  research respectively examines the experiences of Japanese-Canadian mothers in mixed language families in Montreal and the characteristics of mixed language parents across a number of linguistic groups in Alberta.More notably, he was the first scholar to make a link between heritage languages and the development of cosmopolitan identities