IVANTSOV, A. Et Al. 2004. Minor Planet Observations [089 Nikolaev]. The Minor Planet Circulars , 52494.

IVANTSOV, A., Gudkova, L., Pyshnenko, V., & Pozhalova, Z., (2004). Minor Planet Observations [089 Nikolaev]. The Minor Planet Circulars , 52494.

IVANTSOV, ANATOLIY Et Al. "Minor Planet Observations [089 Nikolaev]," The Minor Planet Circulars , 52494, 2004

IVANTSOV, ANATOLIY Et Al. "Minor Planet Observations [089 Nikolaev]." The Minor Planet Circulars , pp.52494, 2004

IVANTSOV, A. Et Al. (2004) . "Minor Planet Observations [089 Nikolaev]." The Minor Planet Circulars , p.52494.

@article{article, author={ANATOLIY IVANTSOV Et Al. }, title={Minor Planet Observations [089 Nikolaev]}, journal={The Minor Planet Circulars}, year=2004, pages={52494} }