The two well known longitudinal studies from the 1970s - one in dunedin and one in Christchurch - have both found this. The Dunedin researcher was on TV recently saying that she had problems getting her results published because of the reluctance to admit that this is the case so I am not sure if there was a publication from her research. And. David Fergusson from the Christchurch study had similar findings and all the publications are on his website and on the study website.
Good on you Steven. I was involved in setting up the Wellington Women's Refuge years ago but I now believe one of the reasons that there seems to have been no change in domestic violence statistics is precisely because the funding recipients and campaigns (millions it must be over the years) fail to acknowledge what research is now showing - that men are equally likely to be victims of violent female partners. Unless relationship dynamics in these situations are acknowledged and understood it is unlikely that there will be any resolution. It takes courage to speak out as you have.