%0 Journal Article %A T. A. Bolokhov %T Properties of some extensions of the quadratic form of the vector Laplace operator %J Zapiski Nauchnykh Seminarov POMI %D 2016 %P 5-19 %V 447 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_2016_447_a0/ %G ru %F ZNSL_2016_447_a0