@article{10_4064_sm151_3_2,
     author = {Spiros A. Argyros and Alexander D. Arvanitakis},
     title = {A characterization of regular averaging operators
 and its consequences},
     journal = {Studia Mathematica},
     pages = {207--226},
     year = {2002},
     volume = {151},
     number = {3},
     doi = {10.4064/sm151-3-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm151-3-2/}
}