Court of Justice 13 July 2017, Case C-89/16: Judgment of the Court (Third Chamber) of 13 July 2017 (request for a preliminary ruling from the Najvyšší súd Slovenskej republiky — Slovak Republic) — Radosław Szoja v Sociálna poisťovňa (Reference for a preliminary ruling — Application of social security schemes — Migrant workers — Person pursuing an activity as an employed person and an activity as a self-employed person in two different Member States — Determination of the applicable legislation — Regulation (EC) No 883/2004 — Article 13(3) — Regulation (EC) No 987/2009 — Article 14(5b) — Article 16 — Effects of the decisions of the Administrative Commission for the coordination of social security systems — Inadmissibility)

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