Lothar Collatz (Catalan Wikipedia)

Analysis of information sources in references of the Wikipedia article "Lothar Collatz" in Catalan language version.

Last modified: 09:55:41, 23 June 2026 (UTC)

Ref.Un. Ref.Website

Global rank Catalan rank

54doi.org

2^nd place

4^th place

44books.google.cat

516^th place

3^rd place

32worldcat.org

4^th place

6^th place

22hu-berlin.de

3,223^rd place

4,586^th place

21sciencedirect.com

137^th place

79^th place

11wiley.com

150^th place

90^th place

books.google.cat (Global: 516^th place; Catalan: 3^rd place)

Jung, 2020, p. 204. Jung, Michael. Eine neue Zeit. Ein neuer Geist? (en alemany). Michael Imhof Verlag, 2020. ISBN 9783731910824.
Althofer, 2019, p. 10. Althofer, Ingo. Lothar Collatz zwischen 1933 und 1950: eine Teilbiographie (en alemany). 3-Hirn-Verlag, 2019.
Pickover, 2009, p. 374. Pickover, Clifford A. Tha Math Book (en anglès). Sterling, 2009. ISBN 978-1-4027-5796-9.
Lagarias, 2010, p. 5. Lagarias, Jeffrey C. The Ultimate Challenge: The 3x+1 Problem (en anglès). American Mathematical Society, 2010. ISBN 978-0-8218-4940-8.

doi.org (Global: 2^nd place; Catalan: 4^th place)

dx.doi.org

Meinardus i Nürnberger, 1991, p. 1. Meinardus, Günter; Nürnberger, Günther «Lothar Collatz (July 6, 1910–September 26, 1990)» (en anglès). Journal of Approximation Theory, Vol. 65, Num. 1, 1991, p. 1-2. DOI: 10.1016/0021-9045(91)90108-M. ISSN: 0021-9045.
Biener, 1993, p. 32. Biener, Klaus «Bedeutender Promovend unserer Universität: Lothar Collatz» (en alemany). RZ-Mitteilungen, Num. 5, 1993, p. 32-33. DOI: 10.18452/6068.
Biener, 1993, p. 33. Biener, Klaus «Bedeutender Promovend unserer Universität: Lothar Collatz» (en alemany). RZ-Mitteilungen, Num. 5, 1993, p. 32-33. DOI: 10.18452/6068.
Alefeld, Plum i Wieners, 2020, p. 1-8. Alefeld, Götz; Plum, Michael; Wieners, Christian «Error bounds and enclosures: The development of numerical analysis and the impact of the contributions by Lothar Collatz» (en anglès). ZAAM Journal of Applied Mathematics and Mechanics, Vol. 100, Num. 10, 2020, p. 1-8. DOI: 10.1002/zamm.202002042. ISSN: 0044-2267.

hu-berlin.de (Global: 3,223^rd place; Catalan: 4,586^th place)

edoc.hu-berlin.de

Biener, 1993, p. 32. Biener, Klaus «Bedeutender Promovend unserer Universität: Lothar Collatz» (en alemany). RZ-Mitteilungen, Num. 5, 1993, p. 32-33. DOI: 10.18452/6068.
Biener, 1993, p. 33. Biener, Klaus «Bedeutender Promovend unserer Universität: Lothar Collatz» (en alemany). RZ-Mitteilungen, Num. 5, 1993, p. 32-33. DOI: 10.18452/6068.

sciencedirect.com (Global: 137^th place; Catalan: 79^th place)

Meinardus i Nürnberger, 1991, p. 1. Meinardus, Günter; Nürnberger, Günther «Lothar Collatz (July 6, 1910–September 26, 1990)» (en anglès). Journal of Approximation Theory, Vol. 65, Num. 1, 1991, p. 1-2. DOI: 10.1016/0021-9045(91)90108-M. ISSN: 0021-9045.

wiley.com (Global: 150^th place; Catalan: 90^th place)

onlinelibrary.wiley.com

Alefeld, Plum i Wieners, 2020, p. 1-8. Alefeld, Götz; Plum, Michael; Wieners, Christian «Error bounds and enclosures: The development of numerical analysis and the impact of the contributions by Lothar Collatz» (en anglès). ZAAM Journal of Applied Mathematics and Mechanics, Vol. 100, Num. 10, 2020, p. 1-8. DOI: 10.1002/zamm.202002042. ISSN: 0044-2267.

worldcat.org (Global: 4^th place; Catalan: 6^th place)

Meinardus i Nürnberger, 1991, p. 1. Meinardus, Günter; Nürnberger, Günther «Lothar Collatz (July 6, 1910–September 26, 1990)» (en anglès). Journal of Approximation Theory, Vol. 65, Num. 1, 1991, p. 1-2. DOI: 10.1016/0021-9045(91)90108-M. ISSN: 0021-9045.
Alefeld, Plum i Wieners, 2020, p. 1-8. Alefeld, Götz; Plum, Michael; Wieners, Christian «Error bounds and enclosures: The development of numerical analysis and the impact of the contributions by Lothar Collatz» (en anglès). ZAAM Journal of Applied Mathematics and Mechanics, Vol. 100, Num. 10, 2020, p. 1-8. DOI: 10.1002/zamm.202002042. ISSN: 0044-2267.

Lothar Collatz (Catalan Wikipedia)

books.google.cat (Global: 516th place; Catalan: 3rd place)

doi.org (Global: 2nd place; Catalan: 4th place)

dx.doi.org

hu-berlin.de (Global: 3,223rd place; Catalan: 4,586th place)