APA (7th ed.) Citation

Schittkowski, K., Zillober, C., & Zotemantel, R. (1994). Numerical comparison of nonlinear programming algorithms for structural optimization. Structural Optimization, 7(1-2), 1-19. https://doi.org/10.1007/BF01742498

Chicago Style (17th ed.) Citation

Schittkowski, K., C. Zillober, and R. Zotemantel. "Numerical Comparison of Nonlinear Programming Algorithms for Structural Optimization." Structural Optimization 7, no. 1-2 (1994): 1-19. https://doi.org/10.1007/BF01742498.

MLA (9th ed.) Citation

Schittkowski, K., et al. "Numerical Comparison of Nonlinear Programming Algorithms for Structural Optimization." Structural Optimization, vol. 7, no. 1-2, 1994, pp. 1-19, https://doi.org/10.1007/BF01742498.