Integral field spectroscopy of M1-67. A Wolf-Rayet nebula with luminous blue variable nebula appearanceA. Fernández-Martín, J. M. Vílchez, E. Pérez-Montero, A. Candian, S. F. Sánchez, D. Martín-Gordón and A. RieraA&A, 554 (2013) A104DOI: https://doi.org/10.1051/0004-6361/201220773