remove old links

pvlib · kandersolar · Feb 8, 2024 · Feb 1, 2024 · Feb 1, 2024 · Feb 1, 2024
commit 7cb58b663ef034e31d0c3f8770cb18370a353662
diff --git a/docs/sphinx/source/user_guide/variables_style_rules.rst b/docs/sphinx/source/user_guide/variables_style_rules.rst
@@ -19,11 +19,8 @@ For a definition and further explanation on the variables, common symbols and un
 * `IEC 61724-1:2017  -- Photovoltaic system performance - Part 1: Monitoring  <https://webstore.iec.ch/publication/33622>`_ section: 3 -- Terms and definitions; the Indian Standard referencing the withdrawn earlier global IEC standard IEC 61724:1998 is available online: `IS/IEC 61724 (1998) <https://archive.org/details/gov.in.is.iec.61724.1998>`_ and can provide relevant contents.
 * Explanation of Solar irradiation and solar geometry by `SoDa Service <http://www.soda-pro.com/home>`_
 
-   * `Acronyms, Terminology and Units <http://www.soda-pro.com/help/general/acronyms-terminology-and-units>`_
-   * `Plane orientations and radiation components <http://www.soda-pro.com/help/general/plane-orientations-and-radiation-components>`_
-   * `Time references <http://www.soda-pro.com/help/general/time-references>`_
-   * `Units and conversion tool <http://www.soda-is.com/eng/education/units.html>`_
-   * `Terminology: definitions of the main quantities. <http://www.soda-is.com/eng/education/terminology.html>`_
-   * `Acronyms in solar radiation <http://www.soda-is.com/eng/education/acronymes.html>`_ (more extensive list)
+   * `Acronyms, Terminology and Units <https://www.soda-pro.com/help/general/acronyms-terminology-and-units>`_
+   * `Plane orientations and radiation components <https://www.soda-pro.com/help/general/plane-orientations-and-radiation-components>`_
+   * `Time references <https://www.soda-pro.com/help/general/time-references>`_
 
 .. note:: These further references might not use the same terminology as *pvlib*. But the physical process referred to is the same.