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"Cardinality Problems of Composition of Morphisms and Inverse Morphisms."
Tero Harju, H. C. M. Kleijn (1989)
- Tero Harju, H. C. M. Kleijn:
Cardinality Problems of Composition of Morphisms and Inverse Morphisms. Math. Syst. Theory 22(3): 151-159 (1989)
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