@article{MS2_1990__67_2_167124,
     author = {Veikko T. Purmonen},
     title = {On a complete initial-boundary value problem for parabolic pseudo-differential operators.},
     journal = {Mathematica Scandinavica},
     pages = {97--118},
     publisher = {mathdoc},
     volume = {67},
     number = {2},
     year = {1990},
     zbl = {0722.35042},
     url = {http://geodesic.mathdoc.fr/item/MS2_1990__67_2_167124/}
}