@article{NUMA_1969__13_131904,
     author = {R.S. ANDERSSEN},
     title = {The {Numerical} {Solution} of {Parabolic} {Differential} {Equations} {Using} {Variational} {Methods.}},
     journal = {Numerische Mathematik},
     pages = {129--145},
     publisher = {mathdoc},
     volume = {13},
     year = {1969},
     zbl = {0183.44701},
     url = {http://geodesic.mathdoc.fr/item/NUMA_1969__13_131904/}
}