The purpose of the book is to highlight the results and features of the research carried out by the authors on the dynamics and strength of the main types of freight wagons, as well as tank containers made of round pipes under the main operating...
Формат:
только полные версии
Историческая работа американского геофизика М.К.Хабберта об истощении запасов нефти.
Фотокопия с оригинала авторской рукописи 1956...