Park, H. K. Max Planck Institute for the Physics of Complex Systems, Max Planck Society;
Park, H. K., & Moon, H. T. (2002). Square to stripe transition and superlattice patterns in vertically oscillated granular layers. Physical Review E, 65(5): 051310. Retrieved from http://ojps.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PLEEE8000065000005051310000001&idtype=cvips&gifs=yes.