title: Classical valence bond approach by modern methods.
authors.affiliation: Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, China. weiwu@xmu.edu.cn
authors.forename: Wei
authors.initials: W
authors.lastname: Wu
authors.forename: Peifeng
authors.initials: P
authors.lastname: Su
authors.forename: Sason
authors.initials: S
authors.lastname: Shaik
authors.forename: Philippe C
authors.initials: PC
authors.lastname: Hiberty