@Article{ authors = " Jan Słopecki, Herbert Bruns", title = "Reflections on the methodology of teaching modern jūjutsu throws", journal = "Ido Movement for Culture : journal of martial arts anthropology : theory of culture, psychophysical culture, cultural tourism, anthropology of martial arts, combat sports", issue = "2014 / Tom 14 / Numer 3", pages = "67 - 75" }

@Article{ authors = " Jan Słopecki, Herbert Bruns", title = "Super Seminar : seminarium szkoleniowe i staż naukowo-badawczy w niemieckim klubie Sportschule Tao : Aurich 11-13. 06. 2011", journal = "Ido Movement for Culture : journal of martial arts anthropology : theory of culture, psychophysical culture, cultural tourism, anthropology of martial arts, combat sports", issue = "2012 / Tom 12 / Numer 3", pages = "53 - 56" }