Tero Harju, Oscar H. Ibarra, Juhani Karhumäki, Arto Salomaa. Some Decision Problems Concerning Semilinearity and Commutation. J. Comput. Syst. Sci., 65(2):278-294, 2002. [doi]
@article{HarjuIKS02,
title = {Some Decision Problems Concerning Semilinearity and Commutation},
author = {Tero Harju and Oscar H. Ibarra and Juhani Karhumäki and Arto Salomaa},
year = {2002},
doi = {10.1006/jcss.2002.1836},
url = {http://dx.doi.org/10.1006/jcss.2002.1836},
researchr = {https://researchr.org/publication/HarjuIKS02},
cites = {0},
citedby = {0},
journal = {J. Comput. Syst. Sci.},
volume = {65},
number = {2},
pages = {278-294},
}