Is there any research on wolf and bobcat interactions?
In Sweden, no clear evidence have been found for interactions between wolf and European bobcat (Lynx lynx), see Wikenros et al, 2010. There, they have studied effects of wolfs on the survival of Lynx kittens, spatial movement of Lynx and Lynx' homerange size. The study finds no significant difference in any factor with/without wolves. They also speculate that the reason for a lack of interactions is that the two species use quite different main food resources (at least in Scadinavia); Lynx being specialized on Roe deer and wolves having wider preferences, but mostly Moose.

You should also look at the report Meta-analysis  on  the  effect  of  competition  between  lynx  and wolf on their diets (Lelieveld, 2013 which might provide more information. From reading the abstract, the report indicates no effects on wolves but that Lynxs might change their foraging behavior.