The Multi-Site Spectroscopic Telescope Campaign - II. Effective temperature and gravity variations in the multi-periodic pulsating subdwarf B star PG 1605+072A. Tillich, U. Heber, S. J. O'Toole, R. Østensen and S. SchuhA&A, 473 1 (2007) 219-228DOI: https://doi.org/10.1051/0004-6361:20077949