2563 20160701171707.0 ASTROimport-720 Cidale, L. S. 2008 Fundamental Parameters and spectrophotometric variability of He-strong stars We present spectroscopic observations of He-strong stars and determine their fundamental parameters using the BCD system and model fittings. We compare our values with others given in the literature and discuss on the accuracy of these estimates and on the influence of the He/H ratio on the Balmer discontinuity and the intensity of He and H lines. Torres, A. Arias, M. L. Zorec, J. Frémat, Y. Vallverdú, R. E. Granada, A. Revista Mexicana de Astronomia y Astrofisica Conference Series 33 2008 51-51 http://esoads.eso.org/abs/2008RMxAC..33...51C published in NONREF