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\Refs\nofrills 
\noindent{\granbf Bibliograf\'\i a}
\vskip .2true in


\ref  \by	 M.F. Atiyah. I.G. Macdonald.
 \book Introducci\'on al \'algebra conmutativa  \publ Ed. Revert\'e 
\yr 1980 \endref
\bigpagebreak

\ref  \by	 A.J. Berrick. M.E. Keating
 \book An Introduction  to Rings and Modules with K.Theory in View \publ Cambridge University Press
\yr 2000 \endref
\bigpagebreak


\ref  \by	 T. S. Blyth
\book Modules Theory. An approach to linear algebra
  \publ American Mathematical Society 
\yr 1968 \endref
\bigpagebreak

\ref  \by	 E-A. Behrens
 \book Ring Theory  \publ Academic Press,  New York  
\yr 1972 \endref
\bigpagebreak


\ref  \by	 P.M. Cohn
 \book Algebra (II) \publ John Wiley\& Sons
\yr 1977 \endref
\bigpagebreak

\ref  \by	 P, Cohn 
\book Universal algebras
  \publ D.Reidel Pul. Co
\yr 1981 \endref
\bigpagebreak


\ref  \by	 P.M. Cohn
 \book An Introduction to Ring Theory \publ Springer-Verlag. New York 
\yr 2000 \endref
\bigpagebreak

\ref  \by	 J.C. McConnell. J.C. Robson
 \book Noncommutative Noetherian Rings \publ John Wiley\& Sons
\yr 1987 \endref
\bigpagebreak


\ref  \by	 K.R. Goodearl
 \book Ring Theory. Nonsingular Rings and Modules.  \publ  Pure and Applied Matrhematics
\yr 1976 \endref
\bigpagebreak

\ref  \by	 T.W.Hungerford
 \book Algebra \publ  Springer-Verlag. New York 
\yr 1974 \endref
\bigpagebreak

\ref  \by	 N. Jacobson 
\book Lectures in Abstract Algebra
  \publ Van Nostrand Reinhold Company
\yr 1953 \endref
\bigpagebreak

\ref  \by	 N. Jacobson 
\book Structure of Rings
  \publ American Mathematical Society, Vol XXXVII
\yr 1968 \endref
\bigpagebreak


\ref  \by	 N. Jacobson 
\book Basic Algebra I
  \publ W.H. Freeman and Company,  New York
\yr 1985 \endref
\bigpagebreak

\ref  \by	 N. Jacobson 
\book Basic Algebra II
  \publ W.H. Freeman and Company,  New York 
\yr 1989 \endref
\bigpagebreak


\ref  \by	 T.Y. Lam
 \book A first course  in noncommutative rings \publ Graduate texts in Mathematics, Springer 
\yr 1991 \endref
\bigpagebreak


\ref  \by	 T.Y. Lam
 \book Lectures on modules and rings  \publ Graduate texts in Mathematics, Springer 
\yr 1999 \endref
\bigpagebreak


\ref  \by	 J. Lambek
 \book Lectures on rings  and modules  \publ Chelsea Publishing Company, New York 
\yr 1976 \endref
\bigpagebreak

\ref  \by	 S. Montgomery, L.Small  
\book Noncommutative Rings
  \publ Springer-Verlag
\yr 1991 \endref
\bigpagebreak

\ref  \by	 M. Petrich
 \book Rings and Semigroups   \publ  Springer-Verlag 
\yr 1974 \endref
\bigpagebreak

\ref  \by	Bo Stenstr\"om
 \book Rings of quotients. An Introduction to Methods of Ring Theory  \publ  Springer-Verlag 
\yr 1975 \endref
\bigpagebreak

\ref  \by	 P. Ribenboim
 \book  Rings  and modules  \publ Interscience  Publishers , New York 
\yr 1969 \endref
\bigpagebreak

\ref  \by	 L.H. Rowen
 \book  Polynomial Identities in Ring Theory \publ Accademic Press, Inc., New York 
\yr 1980 \endref
\bigpagebreak

\ref  \by	 L.H. Rowen
 \book  Ring Theory I \publ Accademic Press, Inc., New York 
\yr 1988 \endref
\bigpagebreak

\ref  \by	 L.H. Rowen
 \book  Ring Theory II \publ Accademic Press, Inc., New York
\yr 1988 \endref
\bigpagebreak

\ref  \by	 Vesselin Drensky
 \book Free Algebras and P.I. Algebras  \publ  Springer-Verlag 
\yr 1999 \endref
\bigpagebreak

\ref  \by	 B.L. Van Der Waerdemn
 \book A History Of Algebra  \publ  Springer-Verlag 
\yr 1985 \endref
\bigpagebreak

\ref  \by	 R. Wisbauer
 \book Free modules and Algebras: Bimodules Structure and Group Actions  \publ  Longman 
\yr 1996 \endref
\bigpagebreak

\ref  \by	 K.A. Zhevlakov. A.M.Slin'ko. I.P. Shestakov. A.I. Shirshov
 \book Rings That Are Nearly Associative  \publ  Academic Press 
\yr 1982 \endref
\bigpagebreak

\endRefs
\enddocument






\ref \key{AM$_2$} \by	 P.N. \'Anh y L. M\'arki 
\paper Structure of rings
\jour  Math. Slovaca \vol44 \yr 1994 \pages 	255--235 \endref
\bigpagebreak


\ref \key{FG$_1$} \by J. Fountain y V. Gould
\paper Orders in rings without identity
\jour Comm.  Algebra \vol 18 \yr 1990 \pages 	3085--3110 \endref
\bigpagebreak


\ref \key{FG$_2$} \by J. Fountain y V. Gould \paper 
Straight left orders in rings 
\jour Quart. J. Math (Oxford)  \vol 43 \yr 1992 \pages 	303--311 \endref
\bigpagebreak


\ref \key{FGGS} \by	 A. Fern\'andez, E. Garc\'\i a, M. G\'omez y M. Siles
\paper Goldie theorem for associative pairs
 \jour  Commun. in Algebra \vol 26(9) \yr 1998 \pages 	2987--3020 \endref
\bigpagebreak

\ref \key{GS} \by	 M. G\'omez y M. Siles \paper    Quotient rings and Fountain-Gould left
orders by the local approach 
 (preprint) \endref
\bigpagebreak

\ref \key{U} \by	 Yuzo Utumi
\paper On Quotient rings
 \jour  Osaka Mathematical Journal \vol 8 \yr 1956 \pages 	1-18 \endref
\bigpagebreak

\endRefs