PHEMU 2003 campaign: observations of the mutual phenomena of the Galilean satellites in RomaniaJ.-E. Arlot, G.-D. Chis, L. Farkas, D. Moldovan, A. Nedelcu, P. Popescu, S. Sorescu, M. Stavinschi, L. Serbanescu, V. Tudose and V. TurcuA&A, 439 2 (2005) 785-789DOI: https://doi.org/10.1051/0004-6361:20042612