@unpublished{birgle:hal-01251652, TITLE = {{A 2-D Composite Polygonal Mixed Finite Element}}, AUTHOR = {Birgle, Nabil and Jaffr{\'e}, J{\'e}r{\^o}me and Roberts, Jean E.}, URL = {https://inria.hal.science/hal-01251652}, NOTE = {working paper or preprint}, YEAR = {2015}, MONTH = Dec, KEYWORDS = {mixed finite element ; polygonal mesh ; flow in porous media}, PDF = {https://inria.hal.science/hal-01251652/file/birgle.pdf}, HAL_ID = {hal-01251652}, HAL_VERSION = {v1}, }