Ban C, Ramakrishnan B, Ling KY, Kung C, Sundaralingam M (January 1994). „Structure of the recombinant Paramecium tetraurelia calmodulin at 1.68 A resolution”. Acta Crystallogr. D Biol. Crystallogr.50 (Pt 1): 50–63. DOI:10.1107/S0907444993007991. PMID15299476.
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Ban C, Ramakrishnan B, Ling KY, Kung C, Sundaralingam M (January 1994). „Structure of the recombinant Paramecium tetraurelia calmodulin at 1.68 A resolution”. Acta Crystallogr. D Biol. Crystallogr.50 (Pt 1): 50–63. DOI:10.1107/S0907444993007991. PMID15299476.