Kong, Lingju; Wang, Min; Yang, Bo Professor John R. Graef. (English) Zbl 1310.01019 Dyn. Syst. Appl. 23, No. 2-3, i-ii (2014). MSC: 01A70 Biographies, obituaries, personalia, bibliographies Biographic References: Graef, John R. × Cite Format Result Cite Review PDF