Campanula alpina subsp. orbelica (Pančić) Urum. in Spis. Bulg. Akad. Nauk. 28: 147. 1923
Campanula alpina subsp. orbelica in Spis. Bulg. Akad. Nauk. 28: 147. 1923
is new combination for Campanula orbelica in Pančić, Nova Elem. Fl. Bulg.: 30. 1886
Campanula alpina subsp. orbelica in Spis. Bulg. Akad. Nauk. 28: 147. 1923