Your search Notice: Eighth Circuit Rule 28a(k) Governs Citation of Unpublished Opinions and Provides That They Are Not Precedent and Generally Should Not Be Cited Unless Relevant to Establishing the Doctrines of Res Judicata, Collateral Estoppel, the Law of the Case, or if the Opinion Has Persuasive Value on a Material Issue and No Published Opinion Would Serve As Well.john G. Irons, Plaintiff, v. Burlington Northern Railroad Company, a Corporation; Rectorredimix Concrete Company, a Corporation, Defendants.burlington Northern Railroad Company, Third Party-plaintiff Appellee, v. Rector Redimix Concrete Company, Third Party-defendant Appellant did not match any document.