pronunciation of “Kunen” [closed]

How should the last name of set theorist Ken Kunen be pronounced? I have heard both koo-nen and kyoo-nen from other people. Probably the best answer would be to say how he himself pronounces it, but a conditional answer (e.g. however the speaker says "Tuesday") might also be acceptable.

I am teaching from his book so I want to say his name correctly.

• I asked Ken a couple of times, and he wouldn’t choose one; he answers to either. I generally say kyoo-nen, though I suspect that the original pronunciation is closer to koo-nen. (That was back in the 70s, so it’s conceivable that he later developed a preference.) – Brian M. Scott Jan 7 '13 at 19:48
• @Brian The first sentence sounds authoritative, so perhaps you should make it an answer. – Trevor Wilson Jan 7 '13 at 19:50
• Done! $\qquad\;$ – Brian M. Scott Jan 7 '13 at 19:52

I asked Ken a couple of times, and he wouldn’t choose one; he answers to either. I generally say kyoo-nen nowadays, though I suspect that the original pronunciation is closer to koo-nen. (That was back in the $70$s, so it’s conceivable that he later developed a preference.)