Comparative analysis of different wallbroken methods for Ginkgo pollen
HAO Gongyuan, WU Caie*, LI Tingting, YANG Jianting
Journal of Nanjing Forestry University (Natural Sciences Edition) . 2009, (04): 81 -85 .  DOI: 10.3969/j.jssn.1000-2006.2009.04.017