@article{v014a016, author = {Kayal, Neeraj and Saha, Chandan and Tavenas, S{\'{e}}bastien}, title = {On the Size of Homogeneous and of Depth-Four Formulas with Low Individual Degree}, year = {2018}, pages = {1--46}, doi = {10.4086/toc.2018.v014a016}, publisher = {Theory of Computing}, journal = {Theory of Computing}, volume = {14}, number = {16}, URL = {https://theoryofcomputing.org/articles/v014a016}, }