Groensteen 2012,第128—129頁. Groensteen, Thierry. The Impossible Definition. Heer, Jeet; Worcester, Kent (编). A Comics Studies Reader. translated by Bart Beaty. University Press of Mississippi. 2012: 124–131 [Originally published in French in 1999] [2013-12-30]. ISBN 978-1-60473-109-5. (原始内容存档于2021-04-21).
Groensteen 2012,第124頁. Groensteen, Thierry. The Impossible Definition. Heer, Jeet; Worcester, Kent (编). A Comics Studies Reader. translated by Bart Beaty. University Press of Mississippi. 2012: 124–131 [Originally published in French in 1999] [2013-12-30]. ISBN 978-1-60473-109-5. (原始内容存档于2021-04-21).
Groensteen 2012,第126頁. Groensteen, Thierry. The Impossible Definition. Heer, Jeet; Worcester, Kent (编). A Comics Studies Reader. translated by Bart Beaty. University Press of Mississippi. 2012: 124–131 [Originally published in French in 1999] [2013-12-30]. ISBN 978-1-60473-109-5. (原始内容存档于2021-04-21).
Groensteen 2012,第126, 131頁. Groensteen, Thierry. The Impossible Definition. Heer, Jeet; Worcester, Kent (编). A Comics Studies Reader. translated by Bart Beaty. University Press of Mississippi. 2012: 124–131 [Originally published in French in 1999] [2013-12-30]. ISBN 978-1-60473-109-5. (原始内容存档于2021-04-21).
Groensteen 2012,第112–113頁. Groensteen, Thierry. The Impossible Definition. Heer, Jeet; Worcester, Kent (编). A Comics Studies Reader. translated by Bart Beaty. University Press of Mississippi. 2012: 124–131 [Originally published in French in 1999] [2013-12-30]. ISBN 978-1-60473-109-5. (原始内容存档于2021-04-21).
Groensteen 2012,第128—129頁. Groensteen, Thierry. The Impossible Definition. Heer, Jeet; Worcester, Kent (编). A Comics Studies Reader. translated by Bart Beaty. University Press of Mississippi. 2012: 124–131 [Originally published in French in 1999] [2013-12-30]. ISBN 978-1-60473-109-5. (原始内容存档于2021-04-21).
Groensteen 2012,第124頁. Groensteen, Thierry. The Impossible Definition. Heer, Jeet; Worcester, Kent (编). A Comics Studies Reader. translated by Bart Beaty. University Press of Mississippi. 2012: 124–131 [Originally published in French in 1999] [2013-12-30]. ISBN 978-1-60473-109-5. (原始内容存档于2021-04-21).
Groensteen 2012,第126頁. Groensteen, Thierry. The Impossible Definition. Heer, Jeet; Worcester, Kent (编). A Comics Studies Reader. translated by Bart Beaty. University Press of Mississippi. 2012: 124–131 [Originally published in French in 1999] [2013-12-30]. ISBN 978-1-60473-109-5. (原始内容存档于2021-04-21).
Groensteen 2012,第126, 131頁. Groensteen, Thierry. The Impossible Definition. Heer, Jeet; Worcester, Kent (编). A Comics Studies Reader. translated by Bart Beaty. University Press of Mississippi. 2012: 124–131 [Originally published in French in 1999] [2013-12-30]. ISBN 978-1-60473-109-5. (原始内容存档于2021-04-21).
Groensteen 2012,第112–113頁. Groensteen, Thierry. The Impossible Definition. Heer, Jeet; Worcester, Kent (编). A Comics Studies Reader. translated by Bart Beaty. University Press of Mississippi. 2012: 124–131 [Originally published in French in 1999] [2013-12-30]. ISBN 978-1-60473-109-5. (原始内容存档于2021-04-21).