On effective speed-up and long proofs of trivial theorems in formal theories
Revue française d'automatique informatique recherche opérationnelle. Informatique théorique, Tome 10 (1976) no. R1, pp. 29-38. 
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     author = {Hartmanis, J.},
     title = {On effective speed-up and long proofs of trivial theorems in formal theories},
     journal = {Revue fran\c{c}aise d'automatique informatique recherche op\'erationnelle. Informatique th\'eorique},
     pages = {29--38},
     publisher = {Dunod-Gauthier-Villars},
     address = {Paris},
     volume = {10},
     number = {R1},
     year = {1976},
     mrnumber = {418511},
     zbl = {0399.03042},
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     url = {http://archive.numdam.org/item/ITA_1976__10_1_29_0/}
}
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Hartmanis, J. On effective speed-up and long proofs of trivial theorems in formal theories. Revue française d'automatique informatique recherche opérationnelle. Informatique théorique, Tome 10 (1976) no. R1, pp. 29-38. http://archive.numdam.org/item/ITA_1976__10_1_29_0/

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