@article{10_1007_s10492_015_0107_5,
     author = {Oswald, Peter},
     title = {Divergence of {FEM:} {Babu\v{s}ka-Aziz} triangulations revisited},
     journal = {Applications of Mathematics},
     pages = {473--484},
     publisher = {mathdoc},
     volume = {60},
     number = {5},
     year = {2015},
     doi = {10.1007/s10492-015-0107-5},
     mrnumber = {3396476},
     zbl = {06486921},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1007/s10492-015-0107-5/}
}