Authors
Stefan Szczepan
Department of Swimming, Faculty of Physical Education and Sport Science, University School of Physical Education in Wroclaw, Poland
Zofia Wróblewska
Department of Applied Mathematics, Faculty of Pure and Applied Mathematics, Wroclaw University of Science and Technology, Poland
Andrzej Klarowicz
Department of Swimming, Faculty of Physical Education and Sport Science, University School of Physical Education in Wroclaw, Poland
Ryszard Błacha
Department of Swimming, Faculty of Physical Education and Sport Science, University School of Physical Education in Wroclaw, Poland
Marek Rejman
Department of Swimming, Faculty of Physical Education and Sport Science, University School of Physical Education in Wroclaw, Poland