NATO revolution in the Polish military cartography
Sobczyński, Eugeniusz, Pietruszka, Jerzy
Masking on Polish and Soviet military topographic maps of areas occupied by units of the Northern Group of Forces of the Soviet Army (NGF)
Sobczyński, Eugeniusz, Szulczewski, Adam
Military aeronautical charts in the past and today
Sobczyński, Eugeniusz, Pietruszka, Jerzy