Dolezal, Jiri
Dvorsky, Miroslav
Kopecky, Martin
Liancourt, Pierre
Hiiesalu, Inga
Macek, Martin
Altman, Jan
Chlumska, Zuzana
Rehakova, Klara
Capkova, Katerina
Borovec, Jakub
Mudrak, Ondrej
Wild, Jan
Schweingruber, Fritz
Article History
Received: 22 January 2016
Accepted: 4 April 2016
First Online: 4 May 2016
Competing interests
: The authors declare no competing financial interests.