Gard, T C <br/><br/>
Top predator persistence in differential equation models of food chains: the effects of omnivory and external forcing of lower trophic levels.  [electronic resource] 

 -  Journal of mathematical biology  1982 
 - 285-99 p.  digital 
<br/><br/> Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. 
<br/><br/><label>ISSN: </label>0303-6812 
<br/><br/><label>Standard No.: </label>10.1007/BF00275394  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Appetitive Behavior<br/>Food Supply<br/>Mathematics<br/>Models, Psychological<br/>Predatory Behavior