Zisook, S; Shuchter, SR (October 1991). "Depression through the first year after the death of a spouse". American Journal of Psychiatry. 148 (10): 1346–52. doi:10.1176/ajp.148.10.1346. PMID1897615.
Auster, T; Moutier, C; Lanouette, N (1 October 2008). "Bereavement and depression: implications for diagnosis and treatment". Psychiatric Annals. 38 (10): 655–661. doi:10.3928/00485713-20081001-01.
Winnecott, Donald W. "The Capacity to be Alone". In The Maturational Processes and the Facilitating Environment: Studies in the Theory of Emotional Development. Madison: International Universities Press, 1965; Robertiello Richard, Gagnier Terril T (1993). "Sado-masochism as a Defense Against Merging: Six Case Studies". Journal of Contemporary Psychotherapy. 23 (3): 183–192. doi:10.1007/BF00945978. S2CID37471839.
Monti-Bloch L, Grosser BI (October 1991). "Effect of putative pheromones on the electrical activity of the human vomeronasal organ and olfactory epithelium". J Steroid Biochem Mol Biol. 39 (4B): 573–82. doi:10.1016/0960-0760(91)90255-4. PMID1892788. S2CID46330425.
Pert, Candace B. Molecules of Emotion. New York: Scribner, 1997' and Panksepp J, Nelson E, Bekkedal M (January 1997). "Brain systems for the mediation of social separation-distress and social-reward. Evolutionary antecedents and neuropeptide intermediaries". Ann N Y Acad Sci. 807 (1): 78–100. Bibcode:1997NYASA.807...78P. doi:10.1111/j.1749-6632.1997.tb51914.x. PMID9071345. S2CID23809381.
Pert, Candace B. Molecules of Emotion. New York: Scribner, 1997' and Panksepp J, Nelson E, Bekkedal M (January 1997). "Brain systems for the mediation of social separation-distress and social-reward. Evolutionary antecedents and neuropeptide intermediaries". Ann N Y Acad Sci. 807 (1): 78–100. Bibcode:1997NYASA.807...78P. doi:10.1111/j.1749-6632.1997.tb51914.x. PMID9071345. S2CID23809381.
Zisook, S; Shuchter, SR (October 1991). "Depression through the first year after the death of a spouse". American Journal of Psychiatry. 148 (10): 1346–52. doi:10.1176/ajp.148.10.1346. PMID1897615.
Monti-Bloch L, Grosser BI (October 1991). "Effect of putative pheromones on the electrical activity of the human vomeronasal organ and olfactory epithelium". J Steroid Biochem Mol Biol. 39 (4B): 573–82. doi:10.1016/0960-0760(91)90255-4. PMID1892788. S2CID46330425.
Pert, Candace B. Molecules of Emotion. New York: Scribner, 1997' and Panksepp J, Nelson E, Bekkedal M (January 1997). "Brain systems for the mediation of social separation-distress and social-reward. Evolutionary antecedents and neuropeptide intermediaries". Ann N Y Acad Sci. 807 (1): 78–100. Bibcode:1997NYASA.807...78P. doi:10.1111/j.1749-6632.1997.tb51914.x. PMID9071345. S2CID23809381.
Winnecott, Donald W. "The Capacity to be Alone". In The Maturational Processes and the Facilitating Environment: Studies in the Theory of Emotional Development. Madison: International Universities Press, 1965; Robertiello Richard, Gagnier Terril T (1993). "Sado-masochism as a Defense Against Merging: Six Case Studies". Journal of Contemporary Psychotherapy. 23 (3): 183–192. doi:10.1007/BF00945978. S2CID37471839.
Monti-Bloch L, Grosser BI (October 1991). "Effect of putative pheromones on the electrical activity of the human vomeronasal organ and olfactory epithelium". J Steroid Biochem Mol Biol. 39 (4B): 573–82. doi:10.1016/0960-0760(91)90255-4. PMID1892788. S2CID46330425.
Pert, Candace B. Molecules of Emotion. New York: Scribner, 1997' and Panksepp J, Nelson E, Bekkedal M (January 1997). "Brain systems for the mediation of social separation-distress and social-reward. Evolutionary antecedents and neuropeptide intermediaries". Ann N Y Acad Sci. 807 (1): 78–100. Bibcode:1997NYASA.807...78P. doi:10.1111/j.1749-6632.1997.tb51914.x. PMID9071345. S2CID23809381.