id: 03706501 dt: j an: 03706501 au: Li, Weixuan ti: Structure polynomials and subgraph identities of graphs. so: Acta Math. Sin. 23, 641-645 (1980). py: 1980 pu: Academia Sinica, Institute of Mathematics, Beijing; Chinese Mathematical Society, Beijing la: ZH cc: ut: structure polynomial ci: li: