1. R. P. Van Royen:Phys. Rev. B,13, 4079 (1976);Phys. Lett.,61 B, 255 (1976).
2. L. D. Landau:Phys. Zurn. Soviet Union,11, 26 (1937) (English translation:D. ter Haar:Men of Physics: L. D. Landau, Vol.2 (Oxford, 1969)).
3. W. L. van Neerven andR. P. Van Royen:The large N limit of the Landau Hamiltonian, University of Nijmegen, preprint (to be published).
4. W. L. van Neerven andR. P. Van Royen:The problem of hyperscaling, University of Nijmegen, preprint (in preparation).
5. W. L. van Neerven andR. P. Van Royen: Infra-red behaviour ofϕ 4 theory in three dimensions and connection with critical phenomena, University of Nijmegen, preprint (to be published).