According to my knowledge, the journal with the publication number of Issn1267 - 2087cN11 -3421/R is a Chinese journal supported by the China Association for Science and Technology, which is in charge of the Ministry of Education of China, and the Science and Technology Department of Anhui Province. Such journals were usually available on the Chinese Academic Periodical Network. However, the specific degree of formality needed to be judged according to the specific situation of the journal, such as the content of the journal, the publication cycle, the author's submission process, and so on. It is recommended to consult the relevant official website or consult professionals for more accurate information when choosing a journal.