Kokan DPI Department of Mathematics. ON THE CANONICAL FORMATION OF CERTAIN SECOND-ORDER PARTIAL DIFFERENTIAL DIFFERENTIAL EQUATIONS IN A TYPE PRESERVING FIELD. IJIE [Internet]. 2023 Dec. 15 [cited 2026 Nov. 10];6(12):122-4. Available from: https://journals.researchparks.org/index.php/IJIE/article/view/5070