TY - Front. Comput. Sci. A1 - Jia LIU, Zhiguo JIANG, Hongjun LI, Xiaopeng ZHANG T1 - Easy modeling of realistic trees from freehand sketches Y1 - 2012-12-01 JF - Frontiers of Computer Science JO - Front. Comput. Sci. SP - 756 EP - 768 VL - 6 IS - 6 UR - https://journal.hep.com.cn/fcs N1 - 10.1007/s11704-012-1295-8 ER -