Horne & Csipke (2009). Horne, Outi; Csipke, Emese (2009). "From Feeling Too Little and Too Much, to Feeling More and Less? A Nonparadoxical Theory of the Functions of Self-Harm". Qualitative Health Research. 19 (5): 655–667. doi:10.1177/1049732309334249. PMID19380501. S2CID40361244. (subscription required)
Horne & Csipke (2009). Horne, Outi; Csipke, Emese (2009). "From Feeling Too Little and Too Much, to Feeling More and Less? A Nonparadoxical Theory of the Functions of Self-Harm". Qualitative Health Research. 19 (5): 655–667. doi:10.1177/1049732309334249. PMID19380501. S2CID40361244. (subscription required)
Horne & Csipke (2009). Horne, Outi; Csipke, Emese (2009). "From Feeling Too Little and Too Much, to Feeling More and Less? A Nonparadoxical Theory of the Functions of Self-Harm". Qualitative Health Research. 19 (5): 655–667. doi:10.1177/1049732309334249. PMID19380501. S2CID40361244. (subscription required)