http://www.ncbi.nlm.nih.gov/pubmed/25237853 (Any fulltext)
http://www.sciencedirect.com/science/article/pii/S1074552114002476 (Any fulltext)
Famulok, M., & Mayer, G. (2014). Aptamers and SELEX in Chemistry & Biology. Chemistry & biology, 21(9), 1055-1058. doi:10.1016/j.chembiol.2014.08.003.