@article{10_21136_CMJ_1993_128434,
     author = {Doupovec, Miroslav},
     title = {Natural transformations between $TTT^*M$ and $TT^*TM$},
     journal = {Czechoslovak Mathematical Journal},
     pages = {599--613},
     publisher = {mathdoc},
     volume = {43},
     number = {4},
     year = {1993},
     doi = {10.21136/CMJ.1993.128434},
     mrnumber = {1258423},
     zbl = {0806.53024},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1993.128434/}
}