Herrera, Rafael (ed.) et al., Geometry of manifolds with non-negative sectional curvature. Selected lecture notes based on the presentations at the 3rd mini-meeting on differential geometry “Recent advances in the geometry of manifolds with non-negative sectional curvature”, Guanajuato, México, December 6–17, 2010. Cham: Springer (ISBN 978-3-319-06372-0/pbk; 978-3-319-06373-7/ebook). Lecture Notes in Mathematics 2110, 45-55 (2014).