IVANTSOV, A. Et Al. 2006. Minor Planet Observations [089 Nikolaev]. The Minor Planet Circulars , 57111.

IVANTSOV, A., Pyshnenko, V., & Pozhalova, Z., (2006). Minor Planet Observations [089 Nikolaev]. The Minor Planet Circulars , 57111.

IVANTSOV, ANATOLIY, V.N. Pyshnenko, And Z.A. Pozhalova. "Minor Planet Observations [089 Nikolaev]," The Minor Planet Circulars , 57111, 2006

IVANTSOV, ANATOLIY Et Al. "Minor Planet Observations [089 Nikolaev]." The Minor Planet Circulars , pp.57111, 2006

IVANTSOV, A. Pyshnenko, V. And Pozhalova, Z. (2006) . "Minor Planet Observations [089 Nikolaev]." The Minor Planet Circulars , p.57111.

@article{article, author={ANATOLIY IVANTSOV Et Al. }, title={Minor Planet Observations [089 Nikolaev]}, journal={The Minor Planet Circulars}, year=2006, pages={57111} }