Heinzer, F <br/><br/>
[The classification of therapeutically used species of the genus Echinacea].  [electronic resource] 

 -  Pharmaceutica acta Helvetiae  1988 
 - 132-6 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0031-6865 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Chromatography, Thin Layer<br/>Plant Extracts--analysis<br/>Plants, Medicinal--classification