R. Stengelin

Normative composition and classification of lunar igneous rocks and glasses, I. Lunar igneous rocks

W. Engelhardt, R. Stengelin, 1979 .

Are Carbon Nanotubes a Naturally Occurring Material? Hints from Methane CVD Using Lava as a Catalyst

T. Hesjedal, R. Fagan, R. Stengelin, 2011 .

Normative composition and classification of lunar igneous rocks and glasses, II Lunar glasses

W. Engelhardt, R. Stengelin, 1981 .