Monthly temperature-humidity index mean values, identification of areas of potential heat stress and their significance in the performance of dairy cattle
(1992)
Proceedings of a symposium on plant protein resources : their improvement through the application of nuclear techniques jointly organized by the IAEA and FAO and held in Vienna, 8 - 12 June, 1970
(1970)
![Национална конференция с международно участие на тема: „Биологични растениевъдство, животновъдство и храни”, [27-28 ноември 2014 г., Троян] [Електронен ресурс] : доклади, постери](https://eclipse.agriacad.bg/storage/img/52/1006/T0156348.jpg?1788914030)