Transformation of the structure professions in higher agricultural schools of Siberia at the end of 1950-s – beginning of 1990-sValeriy V. Petrik, Sergey F. Fominyh and Aleksey S. SurmilloSHS Web of Conferences, 28 (2016) 01078DOI: https://doi.org/10.1051/shsconf/20162801078