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	1.	Sulphur-amino acid metabolism in Aphis fabae. [electronic resource] by Leckstein, P M Producer: 19750310 In: Comparative biochemistry and physiology. B, Comparative biochemistry vol. 49 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	2.	Corpus allatum activity and wing determination in Megoura viciae. [electronic resource] by Leckstein, P M Llewellyn, M Producer: 19760320 In: Nature vol. 258 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	The rŏle of amino acids in diet intake and selection and the utilization of dipeptides by Aphis fabae. [electronic resource] by Leckstein, P M Llewellyn, M Producer: 19740821 In: Journal of insect physiology vol. 20 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	4.	Quantitative analysis of seasonal variation in the amino acids in phloem sap of Salix alba L. [electronic resource] by Leckstein, P M Llewellyn, M Producer: 20140120 In: Planta vol. 124 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)

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