publication of books, texts, magazines, journals, bulletins, newsletters, and reviews; publication of magazines, journals, bulletins, newsletters, and reviews in the legal field; electronic publishing services, namely, publication of text and graphic works of others, on CD, DVD, CD-ROM, CD-R, and on-line, featuring legal subjects; arranging and conducting conferences, congresses, seminars and symposiums in the fields of oil, gas, energy and natural resources, technology, taxation, corporate g...