TY - BOOK AU - De Lellis Camillo AU - Spadaro Emanuele Nunzio TI - Q-valued functions revisited SN - 978-0-8218-4914-9 U1 - 510 PY - 2011/// CY - Providence PB - AMS KW - Dirichlet principle KW - Geometric measure theory KW - Harmonic maps KW - Metric spaces ER -