TY - JOUR T1 - A posteriori error estimates for the virtual element method JF - Numer. Math. Y1 - 2017 A1 - Andrea Cangiani A1 - E.H. Georgoulis A1 - Pryer, Tristan A1 - Sutton, Oliver J. VL - 137 UR - https://doi.org/10.1007/s00211-017-0891-9 ER -