Douglas A. Cenzer Geoffrey LaForte Guohua Wu Pseudojump Operators and P<sup>0</sup><sub>1</sub> Classes. 146-151 2007 conf/cie/2007 CiE http://dx.doi.org/10.1007/978-3-540-73001-9_15 db/conf/cie/cie2007.html#CenzerLW07