@article{CMUC_2003__44_1_a8,
     author = {Hartzstein, Silvia I. and Viviani, Beatriz E.},
     title = {On the composition of the integral  and derivative operators of functional order},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {99--120},
     publisher = {mathdoc},
     volume = {44},
     number = {1},
     year = {2003},
     mrnumber = {2045849},
     zbl = {1127.42305},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_2003__44_1_a8/}
}