<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Csima, Barbara F.</style></author><author><style face="normal" font="default" size="100%">Downey, Rod</style></author><author><style face="normal" font="default" size="100%">Ng, Keng Meng</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">On the c.e. degrees realizable in $\Pi^0_1$ classes</style></title><secondary-title><style face="normal" font="default" size="100%">J. Symb. Log.</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2024</style></year></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.1017/jsl.2023.26</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">3</style></number><volume><style face="normal" font="default" size="100%">89</style></volume><pages><style face="normal" font="default" size="100%">1370–1395</style></pages><language><style face="normal" font="default" size="100%">eng</style></language></record></records></xml>