Agresti JJ, Kelly BT, Jäschke A, Griffiths AD.

Proc Natl Acad Sci U S A. 2005 Nov 8;102(45):16170-5 doi:10.1073/pnas.0503733102

Selection of ribozymes that catalyse multiple-turnover Diels-Alder cycloadditions by using in vitro compartmentalization.

Small molecules mixed with EtOH or DMSO were added by vortexing.