Zawolek, M. W   1955-, <br/><br/>
A physical theory of focus development in plant disease / 
M.W. Zawolek and J.C. Zadoks. 
 - Netherlands :  Agricultural University Wageningen,  1989. 
 - 229 pages :  illustrations ;  25 cm. 
 - Wageningen Agricultural University Papers  89-3. .
<br/><br/> Summary in Dutch.  Revision of Marek Zawolek's thesis. 
<br/><br/>Includes bibliographical references (p. 191-201). 
<br/><br/><br/>eng dut 
<br/><br/><label>ISBN: </label>9067541591 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plant diseases--Epidemiology--Mathematical models.