Ten H. Tzen Lionel M. Ni Trapezoid Self-Scheduling: A Practical Scheduling Scheme for Parallel Compilers. 87-98 1993 4 IEEE Trans. Parallel Distrib. Syst. 1 http://computer.org/tpds/td1993/l0087abs.htm db/journals/tpds/tpds4.html#TzenN93