Liming Cai, Jianer Chen, Johan Håstad. Circuit Bottom Fan-In and Computational Power. SIAM Journal on Computing, 27(2):341-355, 1998.
@article{CaiCH98, title = {Circuit Bottom Fan-In and Computational Power}, author = {Liming Cai and Jianer Chen and Johan Håstad}, year = {1998}, researchr = {https://researchr.org/publication/CaiCH98}, cites = {0}, citedby = {0}, journal = {SIAM Journal on Computing}, volume = {27}, number = {2}, pages = {341-355}, }