acAcademicTrimestersField = new AcademicTrimesterDurationField(this);
acAcademicSemester = new AcademicSemesterDateTimeField(this);
acAcademicSemestersField = new AcademicSemestersDurationField(this);
acAcademicSemesterOfAcademicYear = new AcademicSemesterOfAcademicYearDateTimeField(this);
acDayOfAcademicSemester = new DayOfAcademicSemesterDateTimeField(this);
}
}