Chen, Y. I. and Wolfe D.A. (1990).  A study of distribution-free test for umbrella alternatives. Biometrical J. 32, 47-57.

　
Chen, Y. I. and Wolfe D.A. (1990). Modifications of the Mack-Wolfe umbrella tests for a generalized Behres-Fisher problem.
Canadian J. Statistics 18, 243-253.
　

Chen, Y. I. (1991). Notes on the Mack-Wolfe and Chen-Wolfe tests for umbrella alternatives.  Biometrical J. 33, 281-290.
　

Chen, Y. I. (1992). Robust umbrella tests for a generalized Behrens-Fisher problem. Biometrical J. 34, 347-357.
　

Chen, Y. I.. and Wolfe D.A. (1993). Nonparametric procedures for comparing umbrella pattern treatment effects with a control
in a one-way layout. Biometrics 49, 455-465.

　
Chen, Y. I. (1993). Nonparametric comparisons of umbrella pattern treatment effects with a control in a one-way layout. 
Communications in Statistics: Simulation and Computation 22,749-764.

　
Chen, Y. I. (1994).  A generalized Steel procedure for comparing several treatments with a control under 
random right-censorship. Communications in Statistics: Simulation and Computation 23, 1-16.

　
Chen, Y. I., Cheng, S. S. and Wang, H. L. (1996). Rank-based comparisons of treatments with a control for repeated 
measures designs. Computational Statistics and Data Analysis 22, 235-249

　
Chen, Y. I. (1998).  Simple-tree weighted logrank tests for right-censored data. Annals of the Institute of Statistical
Mathematics 50, 311-324.
　

Chen, Y. I. (1999).  Nonparametric Identification of the Minimum Effective Dose.  Biometrics 55, 1236-1240.

　
Chen, Y. I. (1999).  Rank-Based Tests for Dose-Finding in Non-Monotonic Dose Response Setting.  
Biometrics 55, 1258-1260.


Chen, Y. I. and Chi, Y. S. (2000).  Multiple Comparisons between Successive Treatments for Randomly Right- Censored 
Survival Data.  Journal of Statistical Planning and Inference 83, 137-151.
　

Chen, Y. I. (2000).  Multiple Comparisons in Carcinogenesis Study with Right- Censored Survival Data.  
Statistics in Medicine 19, 353-367


Chen, Y. I., Liu, J. Y. and Chen, S.C. (2000).  Statistical investigation of the relationship between the sunspot number 
and the ionospheric foF2.  Physics and Chemistry of the Earth 25, 359-362


Chen, Y. I. and D.A. Wolfe (2000).  Umbrella Tests for Right-Censored Survival Data.  Statistica Sinica 10, 595-612.

　
Liu, J. Y., Chen, Y. I., Pulient, S. A., Tsai, Y.B., and Choi, Y. J. (2000). Sesimo-ionospheric signatures prior to the M6.0 
Taiwan earthquakes. Geophysical Research Letter 27, 3113-3116.
　

Liu, J.Y., Chen, Y. I., Chou., Y.J., and Tsai, H.F. (2001).  Variations of ionospheric total electron content 
during the Chi-Chi earthquake.  Geophysical Research Letter 28, 1383-1386.


Lee, W.C. and Chen, Y. I. (2001).  Weighted Kaplan-Meier tests for umbrella alternatives.  Annals of Institute of 
Statistical Mathematics 53, 835-852.


Chuo, Y.J., Liu, J.Y., Pulinets, S.A. and Chen, Y. I. (2002).  The ionospheric perturbations prior to Chi-Chi and 
Chia-Yi earthquakes.  Journal of Geodynamics 33, 509-517.


Chuo, Y.J., Liu, J. Y., Komogawa, M., and Chen, Y. I. (2002).  The anomalies in the foEs prior to M 6.0 Taiwan earthquakes.
Seismo. Electromagnetics, Ed. M. Hayakawa and O.A. Molchanov, 309-312.


Chen, Y. I. and Jan, S.L. (2002).  Nonparametric identification of the minimum effective dose for randomized block designs.  
Communications in Statistics: Simulation and Computation 31, 301-312.


Liu, J.Y., Chen, Y. I. and Lin, J.S. (2003).  Statistical investigation of the saturation effect in the ionospheric foF2 
versus sunspot, solar radio noise, and solar EUV radiation.  Journal of Geophysical Research 108, 1067-1073.


Lin, J.H., Yeh,Y.S., Chen, Y. I. , Liu, J.Y. and K.J. Chen (2003).  Earthquake clustering relative to lunar phase in Taiwan. 
To appear in  Terr. Atmos. Ocean. Sci.