@article{10_4064_cm_54_1_103_111,
     author = {S. Hartman},
     title = {Some problems and remarks on relative multipliers},
     journal = {Colloquium Mathematicum},
     pages = {103--111},
     publisher = {mathdoc},
     volume = {54},
     number = {1},
     year = {1987},
     doi = {10.4064/cm-54-1-103-111},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-54-1-103-111/}
}