Dear Wikipedia users,

could you please kindly advise as to what Mr. Levelt's name is? I just can't understand why he's sometimes referred to as Willem and sometimes as Pim. What does "Pim" have to do with this? Thank you,

85.114.189.208 (talk) 02:46, 19 March 2015 (UTC) Vadim.Reply

Updating from German Wikipedia Translation

edit

In progress, adding sections one at a time. — ERcheck (talk) 03:39, 1 May 2023 (UTC)Reply