by Sorin Istrail
Reference:
Sorin Istrail, "On formal constructions of algebraic numbers of degree two", In Revue Roumaine de Mathematiques Pures et Appliquees, vol. 22, no. 9, pp. 1235-1239, 1977.
Bibtex Entry:
@ARTICLE{Istrail1977a,
author = {Istrail, Sorin},
title = {On formal constructions of algebraic numbers of degree two},
journal = {Revue Roumaine de Mathematiques Pures et Appliquees},
year = {1977},
volume = {22},
pages = {1235--1239},
number = {9},
owner = {Derek},
timestamp = {2012.05.08},
category = {Theory of Computation}
}