de Lara-Tuprio, E. P. (1999). Periodic solutions of Duffing's equations with Henstock integrable forcing term. Matimya's Matematika.
Chicago Style (17th ed.) Citationde Lara-Tuprio, Elvira P. "Periodic Solutions of Duffing's Equations with Henstock Integrable Forcing Term." Matimya's Matematika 1999.
MLA (9th ed.) Citationde Lara-Tuprio, Elvira P. "Periodic Solutions of Duffing's Equations with Henstock Integrable Forcing Term." Matimya's Matematika, 1999.
Warning: These citations may not always be 100% accurate.