1. Issledovanie uborki kukuruzy na zerno. [Research of harvesting maize for grains.];Bulgakov;Motorization and Power Industry in Agriculture, Lublin,2006
2. Obmolot pochatkov kukuruzy molotilnym barabanom. [Threshing of maize ears with threshing drum.];Danilevich;Vestnik selskokhoziajstvennoj nauki, Moskva,1961
3. High Speed Movie Observation of an Axial Flow Combine Harvester Cylinder;Gasparetto;Land and Water Use, Balkema, Rotterdam,1989
4. Gasparetto E; Zen M; Guadagnin A (1977). Ultra-high speed observation of a conventional threshing mechanism (cylinder-concave-rear beater) working on wheat. International Grain and Forage Harvesting Conference, 1., 1977, Ames. Proceedings. St. Joseph: ASAE, 104-111
5. Issledovanie razlichnykh sposobov obmolota kukuruzy. [Research on different ways for maize threshing.];Jakumenkov;Mekhanizacija i Elektrifikacija Socialisticheskogo Selskogo Khoziajstva,1965