494. Cases C-350/06 and C-520/06, Gerhard Schultz-Hoff v. Deutsche Rentenversicherung Bund and Mrs C. Stringer and Others v. Her Majestys Revenue and Customs - IEL Labour Law View the chapter 494. Cases C-350/06 and C-520/06, Gerhard Schultz-Hoff v. Deutsche Rentenversicherung Bund and Mrs C. Stringer and Others v. Her Majestys Revenue and Customs by - IEL Labour Law 494. Cases C-350/06 and C-520/06, Gerhard Schultz-Hoff v. Deutsche Rentenversicherung Bund and Mrs C. Stringer and Others v. Her Majestys Revenue and Customs