@article{JMAG_2007_3_a5,
     author = {I. A. Ryzhkova},
     title = {On trace regularity of solutions to a wave equation with homogeneous {Neumann} boundary conditions},
     journal = {\v{Z}urnal matemati\v{c}eskoj fiziki, analiza, geometrii},
     pages = {468--489},
     publisher = {mathdoc},
     volume = {3},
     year = {2007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/JMAG_2007_3_a5/}
}