Authors: HOPPE D AHRENS H GUARNIERI W HELMKE H KOLCZEWSKI S

Citation: D. Hoppe et al., HETEROATOM-DIRECTED LITHIATIONS OF CHIRAL ALKYL CARBAMATES - A POWERFUL TOOL FOR ENANTIOSELECTIVE SYNTHESIS, Pure and applied chemistry, 68(3), 1996, pp. 613-618

Authors: HELMKE H HOPPE D

Citation: H. Helmke et D. Hoppe, CHELATION-DIRECTED ASYMMETRIC LITHIATION AND C-SUBSTITUTION OF 1,2,4-BUTANETRIOL ACETONIDE, Synlett, (9), 1995, pp. 978

Authors: HELMKE H NIEDERSTRASSER H

Citation: H. Helmke et H. Niederstrasser, KNOWLEDGE-BASED SUPERVISION AND FAILURE D IAGNOSTICS OF THE ROBOTIC EXPERIMENT OF THE D-2 SPACELAB MISSION, Zeitschrift fur Flugwissenschaften und Weltraumforschung, 18(1), 1994, pp. 48-53