Selection on multiple sexual signals in two Central and Eastern European populations of the barn swallow - Fülöp, Attila; Tomasek, Oldrich; Albrecht, Tomas; Stermin, Alexandru N.; Wilkins, Matthew R.; Cepak, Jaroslav; Adamkova, Marie; Safran, Rebecca J; Vincze, Orsolya; Pap, Péter L.; Vágási, Csongor; Michalkova, Romana (2020)