[Juha]

Both are correct. There is a list made just after the Continuation War by the HQ of the FiAF. In it by adding up to every pilot all confirmed, all those accepted by the HQ without witnesses and all those cases accepted by the HQ without witnesses but which from the summer 1943 onwards were confirmed into regiment's/wing's account not into pilot's personal account. In that list Tuomonen has 43 victories. Later researchers had found some more air combat reports on accepted victories (in air combat reports there are markings made during the confirmation process and the ultimate decision) so Tuominen has got some extra victories but in a fairly new book By Keskinen and Stenman, Ilmavoitot/Aeriel Victories (osa 2/Vol 2 2006) the authors are marked the victories in the traditional Finnish AF way and also in the RAF way by marking all those accepted by the HQ without witnesses and all those cases that were confirmed into regiment's/wing's account as probables. So in the book Tuominen's score is given as 47 + 8 damaged and 35+12+8.