@article{lehnert1953consideration, title = {Consideration of Some Factors Concerning the Use of Audio Transformers}, author = {Lehnert, Walter E.}, journal = {J. Audio Eng. Soc}, volume = {1}, number = {1}, pages = {105--110}, year = {1953}, url = {https://www.aes.org/e-lib/browse.cfm?elib=119} }