Fiedler, A.; Schipp, R. (1987). "The role of the branchial heart complex in circulation of coleoid cephalopods". Experientia. 43 (5): 544–553. doi:10.1007/BF02143583. S2CID3165383.
Beuerlein, K.; Schimmelpfennig, Robert; Westermann, Bettina; Ruth, Peter; Schipp, Rudolf (1998). "Cytobiological studies on hemocyanin metabolism in the branchial heart complex of the common cuttlefish Sepia officinalis (Cephalopoda, Dibranchiata)". Cell and Tissue Research. 292 (3): 587–595. doi:10.1007/s004410051088. PMID9582416. S2CID33065779.
Witmer, Astrid; Martin, Arthur W. (1973). "The fine structure of the branchial heart appendage of the cephalopod Octopus dofleini martini". Zeitschrift für Zellforschung und Mikroskopische Anatomie. 136 (4): 545–68. doi:10.1007/BF00307370. PMID4346672. S2CID27050110.
Schipp, R.; Schmidt, H. R.; Fiedler, A. (1986). "Comparative cytochemical and pharmacological studies on the cholinergic innervation of the branchial heart of the cephalopod Sepia officinalis (L.)". Experientia. 42: 23–30. doi:10.1007/BF01975878. S2CID19161306.
Beuerlein, K.; Schimmelpfennig, Robert; Westermann, Bettina; Ruth, Peter; Schipp, Rudolf (1998). "Cytobiological studies on hemocyanin metabolism in the branchial heart complex of the common cuttlefish Sepia officinalis (Cephalopoda, Dibranchiata)". Cell and Tissue Research. 292 (3): 587–595. doi:10.1007/s004410051088. PMID9582416. S2CID33065779.
Witmer, Astrid; Martin, Arthur W. (1973). "The fine structure of the branchial heart appendage of the cephalopod Octopus dofleini martini". Zeitschrift für Zellforschung und Mikroskopische Anatomie. 136 (4): 545–68. doi:10.1007/BF00307370. PMID4346672. S2CID27050110.
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Fiedler, A.; Schipp, R. (1987). "The role of the branchial heart complex in circulation of coleoid cephalopods". Experientia. 43 (5): 544–553. doi:10.1007/BF02143583. S2CID3165383.
Beuerlein, K.; Schimmelpfennig, Robert; Westermann, Bettina; Ruth, Peter; Schipp, Rudolf (1998). "Cytobiological studies on hemocyanin metabolism in the branchial heart complex of the common cuttlefish Sepia officinalis (Cephalopoda, Dibranchiata)". Cell and Tissue Research. 292 (3): 587–595. doi:10.1007/s004410051088. PMID9582416. S2CID33065779.
Witmer, Astrid; Martin, Arthur W. (1973). "The fine structure of the branchial heart appendage of the cephalopod Octopus dofleini martini". Zeitschrift für Zellforschung und Mikroskopische Anatomie. 136 (4): 545–68. doi:10.1007/BF00307370. PMID4346672. S2CID27050110.
Schipp, R.; Schmidt, H. R.; Fiedler, A. (1986). "Comparative cytochemical and pharmacological studies on the cholinergic innervation of the branchial heart of the cephalopod Sepia officinalis (L.)". Experientia. 42: 23–30. doi:10.1007/BF01975878. S2CID19161306.