Deep imaging of the shell elliptical galaxy NGC 3923 with MegaCamM. Bílek, J.-C. Cuillandre, S. Gwyn, I. Ebrová, K. Bartošková, B. Jungwiert and L. JílkováA&A, 588 (2016) A77DOI: https://doi.org/10.1051/0004-6361/201526608