Zhygalova, S. L. and Olshanskyi, I. G. (2014) “Hugo Zapałowicz’s species of Iris and Gladiolus (Iridaceae): Typification of his names”, Phytotaxa. Auckland, New Zealand, 163(1), pp. 59–60. doi: 10.11646/phytotaxa.163.1.8.