@article{10_4064_ap_65_2_129_138,
     author = {Jan Popio{\l}ek},
     title = {Properties of some integrals related to partial differential equations of order higher than two},
     journal = {Annales Polonici Mathematici},
     pages = {129--138},
     publisher = {mathdoc},
     volume = {65},
     number = {2},
     year = {1996},
     doi = {10.4064/ap-65-2-129-138},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap-65-2-129-138/}
}