Measurement of the Barkas effect in hydrogen
R. Schmidt, H. Daniel, F.J. Hartmann, P. Hauser, F. Kottmann, M. Mühlbauer, C. Petitjean, W. Schott, D. Taqqu and P. Wojciechowski
Eur. Phys. J. D, 3 2 (1998) 119-122
DOI: https://doi.org/10.1007/s100530050155