@article{smith1971electronic, title = {Electronic Crossover Networks and Their Contribution to Improved Loudspeaker Transient Response}, author = {Smith, Allan P.}, journal = {J. Audio Eng. Soc}, volume = {19}, number = {8}, pages = {674--679}, year = {1971}, url = {https://www.aes.org/e-lib/browse.cfm?elib=2141} }