ONWUBOLU, Godfrey C. und BABU, B. V., 2004. New optimization techniques in engineering. Berlin [u.a.]: Springer. Studies in fuzziness and soft computing, 141. ISBN 354020167 X.

Onwubolu, G.C., Babu, B.V., 2004. New optimization techniques in engineering, Studies in fuzziness and soft computing, Studies in fuzziness and soft computing. Springer, Berlin [u.a.].

Onwubolu, G. C., & Babu, B. V. (ca. 2004). New optimization techniques in engineering [Book]. In Studies in fuzziness and soft computing. Springer.

Onwubolu GC, Babu BV (2004) New optimization techniques in engineering. Springer, Berlin [u.a.]

Onwubolu, Godfrey C./ Babu, B. V., New optimization techniques in engineering, Berlin [u.a.] 2004.