TY - JOUR AU - I. V. Rakhmelevich TI - On Laplace invariants of two-dimensional nonlinear equations of the second order with homogeneous polynomial JO - Izvestiâ vysših učebnyh zavedenij. Matematika PY - 2024 SP - 55 EP - 64 IS - 8 UR - http://geodesic.mathdoc.fr/item/IVM_2024_8_a5/ LA - ru ID - IVM_2024_8_a5 ER -