There is a translation error in the last few lines. The entry (copied below) which reads "Set, Miroslav..." should be: "Sada, Miroslav, Colonel Dr., Czechoslovak Rifles and Machineguns". This book is actually Dr. Sada's Phd thesis (IIRC) and was published in Czechoslovakia in 1972 or 73. It was quickly obtained by the US Army's foreign technology intelligence organization which in 1973 commissioned a full translation into English. This translation has long been in informal public circulation but only hand-to-hand. In the Czech Republic, Sada's book has been republished/reprinted twice (now with color illustrations) but only in the original language. This research and book provided the basic historical material for the other sources quoted, which are much more contemporary. When read with Otakar Franek's three volume history of Ceskslovenska Zbrojovka Brno, you get a good picture of the situation.
Set, Miroslav: Czechoslovak small arms and machine guns, our troops, 2005.