3D non-conforming mesh model for flow in fractured porous media using Lagrange multipliers. - Philipp Schädle; Patrick Zulian; Daniel Vogler; Sthavishtha R. Bhopalam; Maria Giuseppina Chiara Nestola; Anozie Ebigbo; Rolf Krause; Martin O. Saar (Comput. Geosci., 2019)