IVANTSOV, A. Et Al. 2011. Minor Planet Observations [089 Nikolaev]. The Minor Planet Circulars , 74381.

IVANTSOV, A., Sybiryakova, Y., Kozyryev, Y., & Pyshnenko, V., (2011). Minor Planet Observations [089 Nikolaev]. The Minor Planet Circulars , 74381.

IVANTSOV, ANATOLIY Et Al. "Minor Planet Observations [089 Nikolaev]," The Minor Planet Circulars , 74381, 2011

IVANTSOV, ANATOLIY Et Al. "Minor Planet Observations [089 Nikolaev]." The Minor Planet Circulars , pp.74381, 2011

IVANTSOV, A. Et Al. (2011) . "Minor Planet Observations [089 Nikolaev]." The Minor Planet Circulars , p.74381.

@article{article, author={ANATOLIY IVANTSOV Et Al. }, title={Minor Planet Observations [089 Nikolaev]}, journal={The Minor Planet Circulars}, year=2011, pages={74381} }