@article{10_4153_CJM_1966_054_9,
     author = {Porter, A. Duane},
     title = {Pairs of {Bilinear} {Equations} in a {Finite} {Field}},
     journal = {Canadian journal of mathematics},
     pages = {561--565},
     year = {1966},
     volume = {18},
     number = {1},
     doi = {10.4153/CJM-1966-054-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1966-054-9/}
}