scientific article; zbMATH DE number 3388220

zbMath0245.54011MaRDI QIDQ5657368

Z. Opial, Andrzej Lasota

Publication date: 1971

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

Mathematics Subject Classification ID

Set-valued maps in general topology (54C60) Metric spaces, metrizability (54E35)

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