FIRST DETECTION AT THE DECAMETER WAVELENGTHS AND CLARIFICATION OF RADIATION PARAMETERS OF PSR J2325-0530, PSR J0613+3731, AND PSR J1426+52 RADIO PULSARS by Kravtsov, I. P., Zakharenko, V. V., Vasylieva, I. Y., Shevtsova, A. I., Yerin, S. M., Ulyanov, O. M., Konovalenko, O. O., Vasylkivskyi, Y. V., Myasoyed, A. I.