Lodwick, W. <br/><br/>
Fuzzy Surfaces in GIS and Geographical Analysis : Theory Analytical Methods Algorithms and Applications 

 - 1st Ed. 
 -  CRC Press  2008 
 -  20 cm. 
<br/><br/><br/>Text in English 
<br/><br/><label>Index Terms--Genre/Form: </label><br/>24G
<br/><br/><label>Dewey Class. No.: </label> / LOD