-78. Of course, the interim and follow-up responses by States to the CPT's visit reports remain the backbone of the on-going dialogue. Most States continue to forward their responses broadly within the time-limits set by the CPT. However, the CPT wishes to stress the importance of States also responding in time - and in a detailed fashion - to immediate observations made by a delegation during a visit, pursuant to Article 8, paragraph 5, of the Convention. Immediate observations relate to matters considered to be particularly urgent; consequently, a failure to respond in an adequate manner to such observations constitutes a significant violation of the principle of cooperation set out in Article 3 of the Convention. C. Publications 9. In the course of 1997, the CPT's reports on visits to Bulgaria, Cyprus (two visit reports), Denmark, Germany, Italy, Norway, Slovakia and Switzerland were published at the request of the Governments concerned, as were several interim and follow-up responses of Governments.2 At the time of writing, 49 of the 70 visit reports so far drawn up by the CPT have been published. Many of the remaining twenty-one visit reports have only recently been forwarded to Governments and will in all likelihood be published in due course. 10. All visit reports which have been published, as well as the CPT's annual reports, are now accessible via the Internet (http://www.cpt.coe.fr); published responses by Governments are also accessible provided that they have been forwarded to the CPT in electronic format. The CPT's web site also contains information on recent developments, such as new signatures and ratifications of the Convention and its Protocols, visits which have recently been carried out (indicating the composition of the delegation and establishments visited) and updated lists of the names and abridged curricula vitae of the Committee's members. 11. 1997 also saw publication of the first volume of the Yearbook of the European Convention for the Prevention of Torture and Inhuman or Degrading Treatment or Punishment. Published by the Human Rights Law Centre of the University of Nottingham, in association with the Secretariat of the CPT, Volume 1 (1989 1992) includes the text of the Convention, the CPT's Rules of Procedure, the Committee's visit reports and the State responses which were published during that period, as well as other information about the CPT and the Convention. Successive volumes will be published in respect of each year of the Committee's activities. The CPT welcomes this initiative, which should serve to foster further awareness of its activities, particularly in academic circles.3 2 Moreover, to date in 1998 five additional visit reports have been published (concerning visits to Belgium, France, Portugal, Romania and Spain). 3 The Yearbook may be ordered directly from: Human Rights Law Centre, Department of Law, University of Nottingham, Nottingham NG7 2RD, United Kingdom.