BibTeX
@ARTICLE{
         Nisan1997LBo,
       author = "Noam Nisan and Avi Wigderson",
       title = "Lower Bounds on Arithmetic Circuits Via Partial Derivatives",
       journal = "Computational Complexity",
       volume = "6",
       number = "3",
       year = "1997",
       pages = "217--234",
       doi = "10.1007/BF01294256"
}