Schittkowski, K. (1980). Nonlinear programming codes: Information, tests, performance. Springer-Verlag.
Lua i Stíl Chicago (17ú heag.)Schittkowski, Klaus. Nonlinear Programming Codes: Information, Tests, Performance. Berlín: Springer-Verlag, 1980.
Lua MLA (9ú heag.)Schittkowski, Klaus. Nonlinear Programming Codes: Information, Tests, Performance. Springer-Verlag, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.