@article{1183737621,
author = {Maehara, Shoji and Takeuti, Gaisi},
title = {Two Interpolation Theorems for a $\Pi^1\_1$ Predicate Calculus},
journal = {J. Symbolic Logic},
volume = {36},
number = {1},
year = {1971},
pages = { 262-270},
language = {en},
url = {http://dml.mathdoc.fr/item/1183737621}
}
Maehara, Shoji; Takeuti, Gaisi. Two Interpolation Theorems for a $\Pi^1_1$ Predicate Calculus. J. Symbolic Logic, Tome 36 (1971) no. 1, pp. 262-270. http://gdmltest.u-ga.fr/item/1183737621/