This is a report of the then-current status of the EMIL project (also known as krv, kranvagn, project 6400, etc), dated 1952-10-15. Over the course of some hundred pages or so (although not all of the original pages seem to be in the archive I found it in) it covers in great detail what a tank like EMIL needs to do and why it needs to do it.
Archive reference: SE/KrA/0266/002/01:H/F I/19
Note that this report was originally classified top secret (“of great importance for the security of the realm”); the reason it’s in an archive volume dated 1958 is because its classification status was reduced to “regular secret” at that point; top secret and regular secret archives are kept separately.
Minutes from two meetings at Bofors (on 1954-09-22 and 1954-12-08) discussing the status of various projects. More specifically:
Archive reference: SE/KrA/0266/002/01:H/F I/1
Minutes from a meeting (1954-05-04) at the arms administration’s vehicle bureau regarding the status of current projects. Mentions the “tankette” (project 6400 aka. the KRV), kv 155 (a SPG prototype that would eventually become akv 151 and then eventually bkan 1), lvkv fm/49 (a SPAAG) and the upgunning of strv m/42.
Archive reference: SE/KrA/0266/002/01:H/F I/1
Meeting notes from three different meetings between KATF and Bofors at various points during 1954, regarding “project 6400” (a heavy tank).
Archive reference: SE/KrA/0266/002/01:H/F I/1