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- Tony Durkee, Michael Kaess, +28 authors Danuta Wasserman
- Addiction
- 2012

AIMS
To investigate the prevalence of pathological internet use (PIU) and maladaptive internet use (MIU) among adolescents in 11 European countries in relation to demographic, social factors and internet accessibility.
DESIGN
Cross-sectional survey.
SETTING
The 7th Framework European Union (EU) funded project, Saving and Empowering Young Lives in Europe… (More)

- Dragan Marusic
- Discrete Mathematics
- 1983

The following problem is considered: if H is a semiregular abelian subgroup of a transitive permutation group G acting on a finite set X, find conditions for (non)existence of G-invariant partitions of X and give their description in terms of orbits of H. Conditions and descriptions presented in this paper are derived by studying spectral properties of the… (More)

- Dragan Marusic, Roman Nedela
- Eur. J. Comb.
- 1998

- Dragan Marusic
- Discrete Mathematics
- 1981

- Dragan Marusic
- J. Comb. Theory, Ser. B
- 1998

- Dragan Marusic, Cheryl E. Praeger
- J. Comb. Theory, Ser. B
- 1999

In this paper we study finite, connected, 4-valent graphs X which admit an action of a group G which is transitive on vertices and edges, but not transitive on the arcs of X. Such a graph X is said to be (G, 1Â2)-transitive. The group G induces an orientation of the edges of X, and a certain class of cycles of X (called alternating cycles) determined by the… (More)

- Klavdija Kutnar, Dragan Marusic
- Discrete Mathematics
- 2009

- Dragan Marusic, Tomaz Pisanski
- Journal of Graph Theory
- 2000

Certain graph-theoretic properties and alternative deenitions of the Gray graph, the smallest known cubic edge-but not vertex-transitive graph, are discussed in detail.

- Dragan Marusic
- Discrete Mathematics
- 2005