Peculiar: Smart Contract Vulnerability Detection Based on Crucial Data Flow Graph and Pre-training Techniques[C] 2021 IEEE 32ND INTERNATIONAL SYMPOSIUM ON SOFTWARE RELIABILITY ENGINEERING (ISSRE 2021) 2021 Wu, Hongjun Zhang, Zhuo Wang, Shangwen Lei, Yan Lin, Bo Qin, Yihao Zhang, Haoyu Mao, Xiaoguang