Everitt, B. S. <br/><br/>
Finite mixture distributions /  
B.S. Everitt and D.J. Hand. 
 - London, etc. :   Chapman and Hall,   [1981] 
 - IX, 143 p. ;   22 cm. 
 - Monographis on applied probability and statistics .
 - Monographis on applied probability and statistics .