The applicants must know that the Invitation is only valid during the period of 6 months.
To obtain a Master's degree, foreign students are admitted twice a year (until October 30 and February 28 inclusive) on the basis of the entrance exams results of in chosen subjects and language of instruction. Registration to other types of training is performed throughout the year (preparatory studies, postgraduate education, advanced training, internship). Enrollment in the preparatory faculty is conducted thought the whole year.
Keep in mind: if applicants don't report to the university upon the arrival, they may be returned deported from Ukraine!