APA (7th ed.) Citation

Hofer, H. H. (1981). A variational approach to a class of resonance problems with application to a wave equation problem. Zentralstelle der Studentenschaft.

Chicago Style (17th ed.) Citation

Hofer, Helmut H. A Variational Approach to a Class of Resonance Problems with Application to a Wave Equation Problem. Zürich: Zentralstelle der Studentenschaft, 1981.

MLA (8th ed.) Citation

Hofer, Helmut H. A Variational Approach to a Class of Resonance Problems with Application to a Wave Equation Problem. Zentralstelle der Studentenschaft, 1981.