no. 1
Efficient reductions of picture words
RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 27 (1993) no. 1, pp. 49-56. 
@article{ITA_1993__27_1_49_0,
     author = {Brandenburg, Franz J. and Dassow, J\"urgen},
     title = {Efficient reductions of picture words},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {49--56},
     publisher = {EDP-Sciences},
     volume = {27},
     number = {1},
     year = {1993},
     mrnumber = {1213420},
     zbl = {0770.68081},
     language = {en},
     url = {http://www.numdam.org/item/ITA_1993__27_1_49_0/}
}
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AU  - Dassow, Jürgen
TI  - Efficient reductions of picture words
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PY  - 1993
SP  - 49
EP  - 56
VL  - 27
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%P 49-56
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Brandenburg, Franz J.; Dassow, Jürgen. Efficient reductions of picture words. RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 27 (1993) no. 1, pp. 49-56. http://www.numdam.org/item/ITA_1993__27_1_49_0/

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