@article{700078,
     title = {On finite element procedures of high order accuracy for parabolic equations},
     booktitle = {Proceedings of Equadiff III},
     series = {GDML\_Books},
     publisher = {Univ. J. E. Purkyn\v e - P\v r\'\i rodov\v edeck\'a fakulta},
     address = {Brno},
     year = {1973},
     pages = {225-225},
     url = {http://dml.mathdoc.fr/item/700078}
}

Hlaváček, Ivan. On finite element procedures of high order accuracy for parabolic equations, dans Proceedings of Equadiff III, GDML_Books,  (1973), p. 225. http://gdmltest.u-ga.fr/item/700078/