1. Meiosis in two different clones of the apomictic Chondrilla juncea.;Bergman;Hereditas,1950
2. Apomixis in higher plants. Part II. The causal aspect of apomixis;Gustafsson;Lunds Univ. Årsskr. N. F. Avd.,1947
3. Geschlechtliche und ungeschlechtliche Fortpflanzung bei einigen Chondrilla-Arten.;Poddubnaja-Arnoldi;Planta,1933
4. Spontaneous chromosome-aberrants in apomictic Taraxaca.;Söbensen;Kongl. Danske Vid. Selsk. Biol. Skr.,1946