Journals / Turkish Journal of Mathematics / 1995 / Cilt: 19 - Sayı: 2Immersed spheres in 4-manifolds and the immersed Thom conjectureRonald FINTUSHEL, Ronald J. STERNJournalTurkish Journal of MathematicsIssue1995 · Cilt: 19 - Sayı: 2Pages145–157DOI—