Proceedings of Gokova Geometry-Topology Conference, no.No, pp.151-169, 2008 (Conference Book)
We construct an infinite sequence of smooth embeddings of #6RP2 in S4, which are all ambient homeomorphic, but pairwise ambient non-diffeomorphic. The double covers of S4 ramified along these surfaces form a family of the exotic CP2#5CP² constructed by Park, Stipsicz and Szabó.