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- [2] CONVERGENCE OF DIFFERENTIAL EQUATION TRANSFORMATIONS TO NORMAL FORM DOKLADY AKADEMII NAUK SSSR, 1965, 165 (05): : 987 - &
- [5] Some recent methods for partial differential equations of divergence form BULLETIN OF THE BRAZILIAN MATHEMATICAL SOCIETY, 2003, 34 (01): : 107 - 144
- [6] Some recent methods for partial differential equations of divergence form Bulletin of the Brazilian Mathematical Society, 2003, 34 : 107 - 144
- [7] Normal Form for Second Order Differential Equations Journal of Dynamical and Control Systems, 2018, 24 : 541 - 562
- [10] On form-preserving point transformations of partial differential equations Journal of Physics A: Mathematical and General, 31 (06):