Erwin, P. Optical and Interpretative Astronomy, MPI for Extraterrestrial Physics, Max Planck Society;
Beckman, J., Gutiérrez, L., Aladro, R., Erwin, P., & Pohlen, M. (2007). The edges of the stellar populations of early type spirals as probed by their radial brightness profiles. In A. Vazdekis, & R. Peletier (Eds.), Stellar Populations as Building Blocks of Galaxies ( IAU Symposium 241 ) (pp. 495-496). Cambridge, UK: Cambridge University Press.
