3Emswiller T, Deaux K, Willits JE. Similarity, sex, and requests for small favors. Journal of Applied Social Psychology, 1971, 1(3): 284-291.
4Tesser A, Smith J. Some effects of task relevance and friendship on helping: You don't always help the one you like. Journal of Experimental Social Psychology, 1980, 16(6): 582-590.
5Aron A, Aron EN, Smollan D. Inclusion of other in the self scale and the structure of interpersonal closeness. Journal of Personality and Social Psychology, 1992, 63(4): 596.
6Wang CS, Kenneth T, Ku G, et al. Perspective-taking increases willingness to engage in intergroup contact. PLoS One, 2014, 9(1): e85681.
7Gaesser B, Schacter DL. Episodic simulation and episodic memory can increase intentions to help others. Proceedings of the National Academy of Sciences, 2014, 111(12): 4415-4420.
8Oswald PA. The effects of cognitive and affective perspective taking on empathic concern and altruistic helping. The Journal of Social Psychology, 1996, 136(5): 613-623.
9Oswald PA. The interactive effects of affective demeanor, cognitive processes, and perspective-taking focus on helping behavior. The Journal of Social Psychology, 2002, 142 (1): 120-132.
10Aron AP, Mashek DJ, Aron EN. Closeness as including other in the self. Handbook of Closeness and Intimacy, 2004. 27-41.