Jesper Hoffmeyer
2001
Sign systems studies 29/1
2002
Sign systems studies 30/1
Uexkülli "plaanipärasus". kokkuvõte
2004
Sign systems studies 32/1-2
2004
Sign systems studies 32/1-2
2005
Sign systems studies 33/2
Semiotic scaffolding of living systems
2007
in: Introduction to biosemiotics, Dordrecht : Springer
The IASS roundtable on biosemiotics
2008
The American Journal of Semiotics 24/1-3
The natural history of intentionality
2012
in: The symbolic species evolved, Dordrecht : Springer