A.S FOKAS SEPARATION OF VARIABLES METHOD: OVERVIEW. INTERNATIONAL JOURNAL OF ADVANCED RESEARCH IN ENGINEERING AND TECHNOLOGY (IJARET), [S. l.], v. 14, n. 6, p. 78–81, 2023. Disponível em: https://iaeme-library.com/index.php/IJARET/article/view/IJARET_14_06_007.. Acesso em: 7 feb. 2026.