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Rovainen CM (1985). "Respiratory bursts at the midline of the rostral medulla of the lamprey". J Comp Physiol A157 (3): 303–9.. doi:10.1007/BF00618120. PMID3837091.
Nishizawa H, Kishida R, Kadota T, Goris RC; Kishida, Reiji; Kadota, Tetsuo; Goris, Richard C. (1988). "Somatotopic organization of the primary sensory trigeminal neurons in the hagfish, Eptatretus burgeri". J Comp Neurol267 (2): 281–95. doi:10.1002/cne.902670210. PMID3343402.
Rovainen CM (1985). "Respiratory bursts at the midline of the rostral medulla of the lamprey". J Comp Physiol A157 (3): 303–9.. doi:10.1007/BF00618120. PMID3837091.