@article{ARM_2000__36_1_a7,
     author = {Mikulski, W{\l}odzimierz M.},
     title = {The natural transformations $TT^{(r)}\to TT^{(r)}$},
     journal = {Archivum mathematicum},
     pages = {71--75},
     publisher = {mathdoc},
     volume = {36},
     number = {1},
     year = {2000},
     mrnumber = {1751615},
     zbl = {1049.58009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_2000__36_1_a7/}
}