1. Li Yang et al. Some Properties of Generalized Z- Matrix and Generalized M- Matrix [J]. Journal of Liaoning University of Petrochemical Technology (No.2, 2004)

2. Some Properties of Li Yang's Generalized H- Matrix [J], Journal of University of Petrochemical Technology (No.1, 2005)

3. Li Yang. Modified Newton method with adjustable parameters without derivative [J]. Journal of Shandong University (Engineering Edition) (No.4, 2004)

4. Li Yang, Modified Newton Method without Derivative with Adjustable Parameters [J], Journal of Shandong University (Engineering Edition)

5. Grey Optimization of Liyang Securities Portfolio [J], Journal of Shenyang University of Chemical Technology (No.2, 2005)

6. Li Yang, Dual Diagonal Dominance and Nonsingularity of Matrices [J], Journal of Hefei University of Technology (No.1, 2006)

7. A New Proof of Convergence of Li Yang's Newton Descent Method [J], Journal of Jiangxi Normal University (No.4, 2005)