1. k-eccentricity and absolute k-centrum of a probabilistic tree
2. Bortfeld T., Stein J., Preiser K. Clinically relevant intensity modulation optimization using physical criteriaProc. XIIth Internat. Conf. on Use of Computers in Radiation Therapy(1997) Salt Lake City, UT14
3. Carol M. P., Nash R. V., Campbell R. C., Huber R., Sternick E. The development of a clinically intuitive approach to inverse treatment planning: Partial volume prescription and area cost functionProc. XIIth Internat. Conf. on Use of Computers in Radiation Therapy(1997) Salt Lake City, UT317319