I found the digitized by google copy of the document in a very shady part of the net and copied the requested text from page 29 in yandex translation machine (Russian translator so a bit better than the others i hope) and voila, the original text and the translation.
Of great importance for the leading personnel of the Bulgarian People's Army were the "Balkan-88" and "Balkan-89" military exercises, a characteristic feature of which was that they were prepared and conducted taking into account the requirements of the new military doctrine of a defensive orientation. Electronic computing and microcomputer equipment were widely used in the exercises, and for the first time, a local — regional network of warning and control of troops was used.
In modern conditions, the role of regular exercises "Granit", which involve the allied armies in the South-Western Theater of Operations, is increasing for the air defense forces and the Air Force. At these exercises, special attention is paid to the development of the most effective methods and forms of action of groups of coalition troops. In practice, the issues of interaction and management of air defense forces and means are being worked out. Joint staff training exercises, conducted under the leadership of the Joint Command, are also of significant importance for the Bulgarian People's Army, where issues of interaction are explained in detail and in a fully reasoned manner.
Increasing the combat capability of the Bulgarian People's Army is closely related to military-technical and military-scientific cooperation with the allied armies of the Warsaw Pact member states. The Bulgarian Army has the necessary research and development institutions and highly qualified personnel.Our participation in the Technical Committee of the Joint Armed Forces contributes to the better use of military-technical potential, the development of new models and designs of weapons and military equipment.
link to the digitized copy of '1990 Информационный сборник штаба объединенных вооруженных сил государств-участников Варшавского договора ' PDF
'1990 Information collection of the Headquarters of the Joint Armed Forces of the Warsaw Pact Member States volume 39-40