Comet C/2017 C2 (Panstarrs)S. Maticic, D. Koschny, W. Hasubick et al.|Central Bureau Electronic Telegrams|2017Cited by 0
Comet C/2015 h2 (panstarrs)C. Hoegner, G. Ventre, M. Tichý et al.|Minor Planet Electronic Circulars|2015Cited by 0