APA (7th ed.) Citation

Heikkilä, S., & Seikkala, S. (1983). On functional differential equations with advanced and retarded arguments. Univ.

Chicago Style (17th ed.) Citation

Heikkilä, Seppo, and Seppo Seikkala. On Functional Differential Equations with Advanced and Retarded Arguments. Oulu: Univ, 1983.

MLA (9th ed.) Citation

Heikkilä, Seppo, and Seppo Seikkala. On Functional Differential Equations with Advanced and Retarded Arguments. Univ, 1983.