LASCA with a small number of scatterers: Application for monitoring of microflow S. Ulyanov, Y. Ganilova, Dan Zhu, Jianjun Qiu, Pengcheng Li, O. Ulianova and Qingming Luo EPL, 82 1 (2008) 18005 Published online: 17 March 2008 DOI: 10.1209/0295-5075/82/18005