@article{10_4064_fm_160_2_197_198,
     author = {Jerzy B. Nowak},
     title = {Corrections to "$L_2$ -characteristic classes of {Maslov{\textendash}Trofimov} of hamiltonian systems on the {Lie} algebra of the upper triangular matrices" {(Fund.} {Math.} 156 (1998), 99{\textendash}110)},
     journal = {Fundamenta Mathematicae},
     pages = {197--198},
     publisher = {mathdoc},
     volume = {160},
     number = {2},
     year = {1999},
     doi = {10.4064/fm-160-2-197-198},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-160-2-197-198/}
}