Dutch mathematician and sound engineer. Worked as cutting engineer at [l267361] between 1977 and 1984.

Records cut at Dureco used a three or four character code/signature [w]wA[A]n, where [w]w is one or two digits, marking the week of the year the record was cut, A[A] a single or double initial of the engineer who did the cut and n the number of the cut. In these cases the studio can be credited with Lacquer Cut At and the engineer with Lacquer Cut By, using the appropriate ANV for the initial(s). Kooij had a specific way of signing his work, using the initial A on one side and K on the other, but also used initial A or initial K on both sides. Please use each letter as a separate ANV.