1. Observations photographiques de la planète Eros en 1931 Creator: Nechvíle, V., Guth, V., Štěpánek, J., and Kaván, J. Format: bez média and svazek Type: model:article and TEXT Subject: photographic observations and planet Eros Language: Czech Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
2. Sur les méthodes de réduction des observations astrographiques et le calcul des positions d'Eros en 1931 Creator: Nechvíle, V. Format: bez média and svazek Type: model:article and TEXT Subject: astrographic observations and planet Eros Language: Czech Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public