Over Tangentialiteit; geciteerde literatuur.

Bateson, G. 1956. The message "this is play". In: B. Schaffner (ed.), Group Processes; Transactions of the second conference on group processes. New York, Josiah Macy Jr Foundation, pp. 145-249.

Bohm, D. 1980. Wholeness and the Implicate Order. London, Routledge and Kegan Paul.

Chance, M.R.A. 1984. Biological systems synthesis of mentality and the nature of the two modes of mental operation: hedonic and agonic. Man-environment Systems 14: 143-57.

Chance, M.R.A. 1988. Social Fabrics of the Mind. Hove, Lawrence Erlbaum.

Chance, M.R.A. & C.J. Jolly 1970. Social Groups in Monkeys, Apes and Men. London, Jonathan Cape.

Dubbeldam, J.L. & K. Kortmulder 2009. 'Teder' behaviour (tenderness) - an exploration into the neural pathways of mild touch perception in mammals and birds. Animal Biology 59: 1-11.

Fagen, R. 1981. Animal Play Behavior. Oxford Univ. Press.

Feekes, F. 1972. 'Irrelevant' ground pecking in agonistic situations in Burmese Red Jungle Fowl. Behaviour 43: 186-326.

Gombrich, E.H. 1959. Art and Illusion; a Study in the Psychology of Pictorial Representation. Oxford, Phaidon Press.

Groen, J.J. 1990. Tederheidstekort als oorzaak van ziekte. In: de Groot & Kruijt, 1990.

de Groot, A.D. & J.P. Kruijt (eds.) 1990. Tederheid; over de Gevolgen van Tederheidstekort bij Mens en Dier. Amsterdam, SIGO.

Harrison, C.J.O. 1965. Allopreening as agonistic behaviour. Behaviour 24: 161-209.

Hinde, R.A. 1959. Unitary drives. Animal Behaviour 7: 130-41.

von Holst, E. 1934. Studien über Reflexe und Rhythmen beim Goldfisch. Zeitschr. vergl. Physiol. 20: 582-99.

von Holst, E. 1935. Weitere Reflexstudien an spinalen Fischen. Zeitschr. vergl. Physiol. 21: 658-65.

Kortmulder, K. 1972. A comparative study in colour patterns and behaviour in seven Asiatic Barbus species. Behaviour Suppl. 19, pp. xiii, 331.

     -----            1974. On ethology and human behaviour. Acta Biotheor. 23(2): 55-78

     -----            1986. The congener; a neglected area in the study of behaviour.
                                   Acta Biotheor. 35: 39-67.

     -----            1990. Tederheid in zoölogisch perspectief. In: de Groot & Kruijt (eds.), 1990.

     -----            1994. Towards a field theory of behaviour. Acta Biotheor. 42: 281-93.

     -----            1996. The hedonic and agonic modes; a comparative perspective.
                                   The ASCAP Newsletter 9(1): 7-10.

     -----             1998. Play and Evolution; second Thoughts on the Behaviour of Animals.
                                    Utrecht, International Books.

     -----              2013. On sustainable peace; a study in the theory of behavioural modes.
                                    This Blog.

     -----   &  Th E. Spreij 1990. The connectedness of all that is alive and the grounds of congenership; beyond a mechanistic interpretation of life. Rivista di Biologia - Biology Forum 83(1): 107-27.

     -----   & E. Feuth-de Bruijn 1993. On some generative orders of behaviour. Acta Biotheor. 41: 329-44

     -----   & Y. Robbers 2005. The Agonic and Hedonic Styles of Social Behaviour. Mellen Studies in Sociology vol. 49. Lampeter, The Edwin Mellen Press.

     -----   & Y. Robbers 2011. Barbelenverhalen; vissen in Tropisch Water. Brussel, ASP.

Kruijt, J.P. 1964. Ontogeny of social behaviour in Burmese Red Junglefowl. Behaviour Suppl. 12: 1-201.

Loizos, C. 1967. Play behavior in higher Primates: a review. In: D. Morris (ed.) Primate Ethology. Chicago, Aldine.

Lorenz, K.Z. 1935. Der Kumpan in der Umwelt des Vogels. J. Ornithol. 83: 137-213; 289-413.

Lorenz, K.Z. 1961. Das Sogenannte Böse; zur Naturgeschichte der Aggression. Wien Borotha-Schoeler.

McKinney, F., W.R. Siegfried, I.J. Ball & P.G.H. Frost 1978. Behavioral specializations for river life in the African Black Duck (Anas sparsa Eyton). Zeitschr. Tierpsychol. 48: 349-400.

Meyer-Holzapfel, M. 1956. Über die Bereitschaft zu Spiel- und Instinkt-Handlungen. Zeitschr. Tierpsychol. 13: 442-62.

Panksepp, J. 2011. Empathy and the Laws of Affect. Science 334: 1358-9.

Price, J.S. 1995. Aghonistic versus prestige competition: a possible basis for a distinction between the agonic and hedonic modes. The ASCAP Newsletter 8: 7-15.

Price, J.S. 2000. In Memoriam: Tribute to Michael Chance. The ASCAP Bulletin 1(4): 5-7.

Rizzolatti, G., L. Fogassi & V. Gallese 1996. Premotor cortex and the recognition of motor actions. Cognitive  Brain Research 3: 131-41.

Schapp, W. 1985. In Geschichten verstrickt; zum Sein von Mensch und Ding. Frankfurt a.M., Klostermann.

Snow, D.W. 1963. The display of the Blue-backed Manakin Chiroxiphia pareola in Tobago, W-Indies. Zoologica NY 48: 167-76.

Stevens, D. 1993. Bimodality - categories or dimensions? The ASCAP Newsletter September 1993.

Stevens, D. 1997. Bimodal theory in context. The ASCAP Newsletter March 1997.

Stewart, I. 1993. Symmetry breaking cascades and the dynamics of morphogenesis and behaviour. Paper presented at the fourth Waddington Memorial Conference, Spello, 1993.

Stewart, I. & M. Golubitsky 1992. Fearful Symmetry: is God a Geometer? Oxford, Blackwell.

Thorpe, W.H. 1972. Duetting and antiphonal song in birds. Its extent and significance. Behaviour Suppl. 18

de Waal, F.B.M. 1996. Good Natured. The Origins of Right and Wrong in Humans and Other Animals. Boston: Harvard Univ. Press.