void University::MostOccupiedStud() {
     
     int max_courses = 0, count_courses;
     Name stud_name;
     
     for (vector<Student>::const_iterator iter=students.begin();
                          iter<=students.end(); iter++) {
                                                count_courses = *iter.Student::CourseCounter(); // no good
                                                if (count_courses >= max_courses) { 
                                                          stud_name = *iter.Student::GetName(); // no good
                                                          max_courses = count_courses;
                                                }
     }
     cout << "The most occupied student is: " << stud_name << "taking " << max_courses << "courses.";
     return;
}