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Journal of Plant Physiology|September 7, 2001
Circadian rhythm of gravitaxis in Euglena gracilisM Lebert, M Porst, D P HaderMicrogravity Science and Technology|January 1, 1997
Long-term cultivation of the flagellate Euglena gracilisM Porst, M Lebert, D P HaderJournal of Photochemistry and Photobiology. B, Biology|January 12, 2001
On site photosynthetic performance of Atlantic green algaeD P Hader, M Porst, M LebertAdvances in Space Research : the Official Journal of the Committee on Space Research (COSPAR)|October 13, 2001
Physiological characterization of gravitaxis in Euglena gracilis and Astasia longa studied on sounding rocket flightsP R Richter, M Lebert, H Tahedl, et al.Archives of Microbiology|March 1, 1987
Polarotaxis, gravitaxis and vertical phototaxis in the green flagellate, Euglena gracilisD P HaderAdvances in Space Research : the Official Journal of the Committee on Space Research (COSPAR)|September 7, 2001
Gravitaxis in unicellular microorganismsD P HaderAdvances in Space Research : the Official Journal of the Committee on Space Research (COSPAR)|June 1, 2002
Effects of solar UV-B radiation on aquatic ecosystemsD P HaderEuropean Journal of Protistology|February 18, 1994
Effects of heavy metals on motility and gravitactic orientation of the flagellate, Euglena gracilisE Stallwitz, D P HaderAdvances in Space Research : the Official Journal of the Committee on Space Research (COSPAR)|February 11, 2003
Life under solar UV radiation in aquatic organismsR P Sinha, D P HaderPageof 72