Last update: Thu Sep 27 02:46:39 MDT 2018
@Article{Karhumaki:1979:CDS,
author = "J. Karhumaki",
title = "On commutative {DT0L} systems",
journal = j-THEOR-COMP-SCI,
volume = "9",
number = "2",
pages = "207--220",
month = aug,
year = "1979",
CODEN = "TCSCDI",
ISSN = "0304-3975 (print), 1879-2294 (electronic)",
ISSN-L = "0304-3975",
bibdate = "Sat Nov 22 13:36:07 MST 1997",
bibsource = "http://www.math.utah.edu/pub/tex/bib/tcs1975.bib",
acknowledgement = ack-nhfb,
classification = "C4210 (Formal logic)",
corpsource = "Dept. of Math., Univ. of Turku, Turku, Finland",
fjournal = "Theoretical Computer Science",
journal-URL = "http://www.sciencedirect.com/science/journal/03043975/",
keywords = "commutative DT0L systems; composite numbers;
computability and decidability; formal languages;
languages; length sets; undecidability results; word",
pubcountry = "Netherlands",
treatment = "T Theoretical or Mathematical",
}