On bases that are closed under multiplication

Tytuł:

Czasopismo:

American Mathematical Monthly

Rok:

2017

Strony:

651–653

Tom (seria wydawnicza):

124

Link:

http://www.jstor.org/stable/10.4169/amer.math.monthly.124.7.651?seq=1#page_scan_tab_contents

Access:

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