On subfields of k(x)
Rendiconti del Seminario Matematico della Università di Padova, Tome 75 (1986), pp. 257-273. 
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     author = {Alexandru, Victor and Popescu, Nicolae},
     title = {On subfields of $k(x)$},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     pages = {257--273},
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     volume = {75},
     year = {1986},
     mrnumber = {847671},
     zbl = {0596.12027},
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     url = {http://www.numdam.org/item/RSMUP_1986__75__257_0/}
}
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Alexandru, Victor; Popescu, Nicolae. On subfields of $k(x)$. Rendiconti del Seminario Matematico della Università di Padova, Tome 75 (1986), pp. 257-273. http://www.numdam.org/item/RSMUP_1986__75__257_0/

[1] N. Bourbaki, Algébre, Ch. 4-5, Hermann, Paris, 1967.

[2] C. Chevalley, Introduction to the Theory of Algebraic Functions of One Variable, A.M.S. Math. Surveys, 6 (1951). | MR | Zbl

[3] A. Mcconnell, Polynomial subfields of k(X), J. Reine Angew. Math., 266 (1974), pp. 136-139. | EuDML | MR | Zbl

[4] P. Samuel - O. Zariski, Commutative Algebra, vol. I, Van Nostrand, Princeton, 1958. | MR | Zbl

[5] J.P. Serre, Corps Locaux, Hermann. Paris. 1962. | MR | Zbl

[6] N.G. Tchebotarev Theory of Algebraic Functions (Russian), Moskow, 1948.