@article{107599, author = {Lev M. Berkovi\v c and Nikolai Khristovich Rozov}, title = {Transformations of linear differential equations of second order and adjoined nonlinear equations}, journal = {Archivum Mathematicum}, volume = {033}, year = {1997}, pages = {75-98}, zbl = {0914.34035}, mrnumber = {1464303}, language = {en}, url = {http://dml.mathdoc.fr/item/107599} }
Berkovič, Lev M.; Rozov, Nikolai Khristovich. Transformations of linear differential equations of second order and adjoined nonlinear equations. Archivum Mathematicum, Tome 033 (1997) pp. 75-98. http://gdmltest.u-ga.fr/item/107599/
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