@article{10_4064_cm_80_1_131_145,
     author = {Wojciech Czaja and Ziemowit Rzeszotnik},
     title = {Two remarks about spectral asymptotics of pseudodifferential operators},
     journal = {Colloquium Mathematicum},
     pages = {131--145},
     publisher = {mathdoc},
     volume = {80},
     number = {1},
     year = {1999},
     doi = {10.4064/cm-80-1-131-145},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-80-1-131-145/}
}