Nagata, Masayoshi <br/><br/>
On flat extensions of a ring  / 

 - Montreal:  Les Presses de L'Universite de Montreal,  1971 
 - 58p. Bibl. 
 - University of Montreal, Seminaire de Mathematiques superieures, ETE, 1970, v. 46 .
<br/><br/><label>Dewey Class. No.: </label>512  / N147.OF