[Asger] Jorn was made very happy by the news that I brought to him from Brussels. He will surely come to see you before the end of March , as close to the 25th as possible. In your company, he will then present to Niels the propositions of which you are aware. In this respect, he judges d'Haese the same way you do, but believes that he's quite dangerous due to the influence he exercises over Niels.
Yesterday, Jorn wrote to Sieber and sent him the documents, so as to propose to him a more exhaustive exchange of views after his first meeting with [Maurice] Wyckaert. In accord with what we agreed upon in Bruseels, Jorn explained that a hastily organized, collective exposition would not be interesting, but that we are favorable to a dialogue on the central issues with his group. At the same time, Platschek was notified in order that he find out about it and eventually pursue conversations in Germany.
Concerning the [situationists'] journal, we think to give you a short supplementary postponement. It will be enough if your works reach us before 31 March. The deadline remains pressing. But we are absolutely counting on you.
I have sent several documents to Coulommier. Think about obtaining Polish addresses.
[Walter] Korun's proposition concerning an action to be attempted on the occasion of the International Conference of Art Critics -- 15 April  in Brussels -- has found the greatest approval here. If you are in agreement, we've decided on the following plan:
In Paris, we print 2,000 copies of a tract to throw during this meeting -- if possible at the time of the inaugural session -- at the same moment that one of us, suddenly taking the floor, reads the text aloud (a little beforehand, other copies will have to be mailed out to the newspapers of Europe).
On this affair, the most rigorous secrecy must be kept, because surprise is necessary and sufficient for success. It seems to me that you four must be the only ones in Belgium who know of this project -- except, of course, if, in the meantime, someone else joins our positions.
Try to send us by return mail all the information that you can possibly obtain on this conference, its participants, etc., but especially its name and its exact dates (which must figure in our tract).
Finally, anticipate the best you can how to introduce several people into the conference, without encountering obstacles (invitation cards to members of the press, etc.)I hope to see you soon in Paris. Regards from all of us.
 Friedrich Sieber, German painter linked to Gruppe 11 [Group 11].
 Hans Platscek, German painter and art critic, member of the German section of the S[ituationist] I[nternational].
 Julien Coulommier, photographer from Brussels, a friend of Wyckaert.
(Published in Guy Debord, Correspondance, Volume 1, 1957-1960. Footnotes by Alice Debord. Translated from the French by NOT BORED! May 2005.)