Imkeller, P <br/><br/>
Two-parameter martingales & their quadratic variation 
P. Imkeller 
 - Berlin  Springer  1988 
 - iv  177 
 - Lecture notes in mathematics 1308 .
<br/><br/><label>ISBN: </label>3540192336 
<br/><br/><label>Dewey Class. No.: </label>16.03+22  / IMKE