Sbornik ot nauchni dokladi i sŭobshtenii͡a︡
Subtitle: nauchna sesii͡a︡
By: [redakt͡s︡ionna kolegii͡a︡ P. Zafirov ... et al. ; redaktor L. Ĭordanova].
Publisher: Nauchnoizsledovatelski in-t po geodezii͡a︡ i kartografii͡a︡
Published: 1970
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 125