1. Maskelynite formation by explosive shock;Milton;Science,1963
2. Stony meteorites bearing maskelynite;Binns;Nature,1967
3. Shock effects of certain rock-forming minerals;Chao;Science,1967
4. Diaplektische Gläser in den Breccien des Ries von Nördlingen als Anzeichen für Stoßwellenmetamorphose;Engelhardt;Contrib. Miner. Petrol.,1967
5. W.v. Engelhardt, D. Stöffler, Stages of shock metamorphism in crystalline rock of the Ries Basin, Germany, in: B.M. French, N.M. Short (Eds.), Shock Metamorphism of Natural Materials, Mono Book Corp., Baltimore, MD, 1968, pp. 159–169.