Schabort, J.C. and Potgieter, D.J.J. (1968). „Cucurbitacin B Δ23-reductase from Cucurbita maxima. II. Cofactor requirements, enzyme kinetics, substrate specificity and other characteristics”. Biochim. Biophys. Acta151: 47-53. PMID4384331.
Schabort, J.C., Potgieter, D.J.J. and de Villiers, V. (1968). „Cucurbitacin B Δ23-reductase from Cucurbita maxima. I. Assay methods, isolation and purification”. Biochim. Biophys. Acta151: 33-46. PMID5640163.