@article{UZERU_2009_3_a6,
     author = {A. H. Arakelyan},
     title = {On the type correctness of polymorphic  $\lambda$-terms. 1},
     journal = {Proceedings of the Yerevan State University. Physical and mathematical sciences},
     pages = {42--51},
     publisher = {mathdoc},
     number = {3},
     year = {2009},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/UZERU_2009_3_a6/}
}