1. Chen, Z.H. Random walk and martingales under sublinear expectations. Master Thesis, Nanjing University, 2012
2. Chen, Z.J. Strong laws of large numbers for sub-linear expectations. Science China Mathematics, 59 (5): 945–954 (2016)
3. Cohen, S.N., Ji, S.L., Peng, S. Sublinear expectations and martingales in discrete time. arXiv: 1104.5390v1 (2011)
4. Hu, F., Chen Z.J. General laws of large numbers under sublinear expectations. Comm. Statist. Theory Methods, 45 (14): 4215–4229 (2016)
5. Peng, S. G-expectation, G-Brownian motion and related stochastic calculus of Ito type. In: F.E. Benth, et al.(Eds.), Proceedings of the Second Abel Symposium 2005, Springer-Verlag, 541–567, 2006