Набла (Ukrainian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Набла" in Ukrainian language version.

refsWebsite

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1web.archive.org

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google.ru

books.google.ru

Steven Schwartzman. The Words of Mathematics: An Etymological Dictionary of Mathematical Terms Used in English. — The Mathematical Association of America, 1996. — С. 6. — ISBN 0-88385-511-9.

tripod.com

jeff560.tripod.com

http://jeff560.tripod.com/calculus.html [Архівовано 1 травня 2015 у Wayback Machine.] VECTOR CALCULUS SYMBOLS «The vector differential operator, now written and called nabla or del, was introduced by William Rowan Hamilton (1805—1865).»

web.archive.org

http://jeff560.tripod.com/calculus.html [Архівовано 1 травня 2015 у Wayback Machine.] VECTOR CALCULUS SYMBOLS «The vector differential operator, now written and called nabla or del, was introduced by William Rowan Hamilton (1805—1865).»