@Book{OL27351482M, title: {The Subtle Art of Not Giving a Fuck}, author: {Mark Manson}, publisher: {HarperLuxe}, year: {2019}, } @Book{OL971651M, title: {Forbidden knowledge}, author: {Roger Shattuck}, publisher: {St. Martin's Press}, year: {1996}, place: {New York}, } @Author{OL25231A, name: {Roger Shattuck}, }