@misc{Puetter, author = {P{\"u}tter, Norbert}, title = {Die K{\"o}lner Silvesternacht. Polizeiversagen, ihre Opfer und Nutznießer}, series = {B{\"u}rgerrechte \& Polizei / CILIP}, journal = {B{\"u}rgerrechte \& Polizei / CILIP}, number = {111}, issn = {0932-5409}, pages = {47 -- 56}, language = {de} }