@article{MZ_1979__166_172823,
     author = {Peter Seibt},
     title = {Differential {Filtrations} and {Symbolic} {Powers} of {Regualr} {Primes.}},
     journal = {Mathematische Zeitschrift},
     pages = {159--164},
     publisher = {mathdoc},
     volume = {166},
     year = {1979},
     zbl = {0389.13008},
     url = {http://geodesic.mathdoc.fr/item/MZ_1979__166_172823/}
}