@article{article, title = {Positive-displacement hydraulic-mechanical transmission for tracked and wheeled machinery}, author = {}, year = {1996}, journal = {Traktory i Sel' skokhozyaistvennye Mashiny}, volume = {8}, pages = {20-24}, howpublished = "\url{https://eurekamag.com/research/002/925/002925424.php}" }