@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},
}