Duplicate title to Boza, G. ORCID: https://orcid.org/0000-0001-6453-8254, Kun, A., Scheuring, I., & Dieckmann, U. ORCID: https://orcid.org/0000-0001-7089-0393 (2012). Strategy diversity stabilizes mutualism through investment cycles, phase polymorphism, and spatial bubbles. PLoS Computational Biology 8 (11) E1002660. 10.1371/journal.pcbi.1002660.