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@article{MO_1999_11_4_a3, author = {V. S. Kulikov}, title = {On the {Equation} {F(}$\cos$x,$\sin$x) = 0, {F(}$z_1$,$z_2$) {Being} a {Quadratic} {Polynomia}}, journal = {Matemati\v{c}eskoe obrazovanie}, pages = {35--40}, publisher = {mathdoc}, volume = {11}, number = {4}, year = {1999}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MO_1999_11_4_a3/} }
V. S. Kulikov. On the Equation F($\cos$x,$\sin$x) = 0, F($z_1$,$z_2$) Being a Quadratic Polynomia. Matematičeskoe obrazovanie, Tome 11 (1999) no. 4, pp. 35-40. http://geodesic.mathdoc.fr/item/MO_1999_11_4_a3/