@inbook{inbook, title  = {{Introducing age, period and cohort effects}},

 publisher = {{Routledge}},

 url = {{https://www.routledge.com/9780429056819 }},

 year = {{2021}},

 month = {{1}},

 author = {{Bell A}},

 isbn = {{978-0-367-17443-9}},

 note = {{Accessed on 2024/09/19}}}