Kai Nan Jianjun Yu Hao Su Shengmin Guo Hui Zhang Ke Xu Towards structural Web Services matching based on Kernel methods. 450-458 2007 1 Frontiers of Computer Science in China 4 http://dx.doi.org/10.1007/s11704-007-0043-y db/journals/fcsc/fcsc1.html#NanYSGZX07