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3. Some investigations on the metaboLism of phenylalanine and tyrosine in children with vitamin C deficiency;Huisman, T.H.J.; Jonxis, J.H.P.;Archives of Disease in Childhood,1957
4. Amino aciduria and ascorbic acid deficiency;Jonxis, J.H.P.; Huisman, T.H.J.;Pediatrics,1954
5. A modified ninhydrin reagent for the photometric determination of amino acids and related compounds;Moore, S.; Stein, W.H.;Journal of Biological Chemistry,1954