Institution: | (1) Zentralinstitut für Physik der Erde, Akademie der Wissenschaften der DDR, 1561 Potsdam, D.D.R.;(2) Present address: c/o Kansas Geological Survey, The University of Kansas, 66047 Lawrence, Kansas;(3) Advanced Projects Section, Kansas Geological Survey, The University of Kansas, 66047 Lawrence, Kansas |