Motion of Euglena gracilis: Active fluctuations and velocity distributionP. Romanczuk, M. Romensky, D. Scholz, V. Lobaskin and L. Schimansky-GeierEur. Phys. J. Special Topics, 224 7 (2015) 1215-1229DOI: https://doi.org/10.1140/epjst/e2015-02456-1