1. Bell PA, Greene TC, Fisher JD, Baum A (2001) Environmental psychology. Harcourt, Fort Worth
2. Berlyne DE (1960) Conflict, arousal and curiosity. McGraw-Hill, New York
3. Berlyne DE (1974) Studies in the new experimental aesthetics: steps toward an objective psychology of aesthetic appreciation. Halsted Press, New York
4. Bies AJ, Blanc-Goldhammer DR, Boydston CR, Taylor RP, Sereno ME (2016) Aesthetic responses to exact fractals driven by physical complexity. Front Hum Neurosci 10:1.
https://doi.org/10.3389/fnhum.2016.00210
5. Bourke P (1991) An introduction to fractals.
http://paulbourkenet/fractals/fracintro/
. Accessed 26 Feb 2018