1. Additivity of mutational effects in proteins;JA Wells,1990
2. Epistasis–the essential role of gene interactions in the structure and evolution of genetic systems;PC Phillips,2008
3. Charting the genetic interaction map of a cell;M Costanzo,2011
4. Molecular mechanisms of epistasis within and between genes;B Lehner,2011
5. Genotype to phenotype: a complex problem;RD Dowell,2010