I can't find that article here, on OB, or in my Evernotes.

Googling, this Holocaust meta-analysis http://www.apa.org/pubs/journals/features/bul1365677.pdf only mentions defensive mechanisms post-Holocaust (focusing on denial); http://amcha.org/Upload/folgen.pdf & http://peterfelix.tripod.com/home/Psychopathology.pdf focused on treatment of survivors and any effects on their children & grandchildren.

Roberta Greene's 'resilience' research sounds relevant, but from this summary http://www.templeton.org/pdfs/press_releases/Utopian%20Spring%202009.pdf it sounds like it found the opposite - dependence on friends & family:

During the war, participants engaged in many adaptive and resilient behaviors such as trying to survive in family groups, Greene said. She found their stories often contained information about how they bartered for goods, exchanged favors, bribed guards and organized underground resistance units. Sixty-four percent remembered resolving to live, 50 percent recalled making friends, 55 percent turned to others or banded together, 50 percent found ways to get extra food and 48 percent cared for others. Greene found that although some Holocaust survivors reported feelings of anger and continuing disbelief in their old age, they also recounted that during their time in concentration camps they maintained personal bonds, made choices and “controlled their lives through their own special and sometimes secretive means.” For example, they set up governmental structure and schools, performed concerts and even wrote poetry. “An analysis of the interviews showed positive themes—even within the camps,” Greene said. “Survivors talked of making a conscious decision to go on living, celebrate life and think positively about themselves.”

Some interesting citations and facts:

Of those [child survivors] who were hidden among gentiles, quality of caretaking varied. Many were threatened with death if they did not behave, and one-sixth were sexually molested (Moskowitz & Krell)...One three-year-old appealed to an SS man to not kill her as she had good hands for work (Kestenberg 1990)...Magic was used to connect with parents. For instance, one child (Valent 1994) kept contact with her father through talking to him via the moon.