@article{MM2_1998__95_3_156360,
     author = {Stephan Dahlke},
     title = {Besov {Regularity} for {Second} {Order} {Elliptic} {Boundary} {Value} {Problems} with {Variable} {Coefficients.}},
     journal = {Manuscripta mathematica},
     pages = {59--78},
     publisher = {mathdoc},
     volume = {95},
     number = {3},
     year = {1998},
     zbl = {0895.35017},
     url = {http://geodesic.mathdoc.fr/item/MM2_1998__95_3_156360/}
}