How to handle speciose clades? Mass taxon-sampling as a strategy towards illuminating the natural history of Campanula (Campanuloideae). oleh Guilhem Mansion, Gerald Parolly, Andrew A Crowl, Evgeny Mavrodiev, Nico Cellinese, Marine Oganesian, Katharina Fraunhofer, Georgia Kamari, Dimitrios Phitos, Rosemarie Haberle, Galip Akaydin, Nursel Ikinci, Thomas Raus, Thomas Borsch