Springer. Orléans : Impr. nouvelle ; Paris : Dunod (1939) Optik für Praktiker. Halle (1941), 2nd edition. (1948) revised by Hugo John Ivan Gramatzki Electron-optics, translated by Arthur Palme. Boston (1944), 2nd edition, Boston (1948) Further reading Manfred Hempel, "German Television pioneers and the conflict between Public Programming and Wonder Weapons" in: Historical Journal of Film, Radio and Television, Volume 10, Issue 2 (1990), pp. 123 – 162 References External links Nazi photo of Hatschek's wife, Elli, after her arrest Gedenkstätte-Plötzensee. Retrieved August 15, 2011 Czech engineers 1888 births 1944 deaths Executed German Resistance members Executed Czech people People executed by Germany by decapitation Czech people executed by Nazi Germany Czechoslovak engineers