On chains of purely transcendental field extensions
Rendiconti del Seminario Matematico della Università di Padova, Tome 83 (1990), pp. 171-175. 
@article{RSMUP_1990__83__171_0,
     author = {Bastos, G. G. and Fuchs, L. and Viswanathan, T. M.},
     title = {On chains of purely transcendental field extensions},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {171--175},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {83},
     year = {1990},
     mrnumber = {1066438},
     zbl = {0728.12006},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1990__83__171_0/}
}
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Bastos, G. G.; Fuchs, L.; Viswanathan, T. M. On chains of purely transcendental field extensions. Rendiconti del Seminario Matematico della Università di Padova, Tome 83 (1990), pp. 171-175. http://www.numdam.org/item/RSMUP_1990__83__171_0/

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