A letter in Dutch from Evert R. Sluiter, congratulating Dijkstra with his one thousandth EWD. Sluiter also mentioned that he received the EWDs from two people, one of them being Jan van der Snepsheut (University of Groningen), the other being a colleague at `AT&T en Philips Telecommunicatie'.
Professor R.T. Boute from the K.U. Nijmegen congratulated Dijkstra.
A letter from Jinan University, stating:
Dear professor Dijkstra,
I am delighted to tell you that I have seen your EWD 1000, "Twenty-eight years". Some [of] your EWDS have been included in my lectures. Your articles do help me much. I feel honoured if I can get your new EWDs.
A postcard from Computer Aided Design for VLSI Systems,
Philips Research Laboratories Eindhoven
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