A Posteriori Error Estimation for Reduced-Basis Approximation of Parametrized Elliptic Coercive Partial Differential Equations: “Convex Inverse” Bound ConditionersKaren Veroy, Dimitrios V. Rovas and Anthony T. PateraESAIM: COCV, 8 (2002) 1007-1028DOI: https://doi.org/10.1051/cocv:2002041