Complex sentence: In 1902, Proskuryakov published the first volume of structural mechanics titled "Strength of Materials", and in 1907 he published the second volume-- "Structural Statics", and also the research paper "On the analysis of continuous trusses".
Split into simpler sentences: In 1902, Proskuryakov published the first volume of structural mechanics entitled "Strength of Materials". Later, in 1907 he published the second volume-- "Structural Statics", as well as the study "On the analysis of continuous trusses".