First Detection at the Decameter Wavelengths and Clarification of Radiation Parameters of PSR J2325-0530, PSR J0613+3731, and PSR J1426+52 Radio Pulsars - I. P. Kravtsov; V. V. Zakharenko; Ya. Yu. Vasylieva; A. I. Shevtsova; S. M. Yerin; O. M. Ulianov; O. O. Konovalenko; Ye. V. Vasylkivskyi; A. I. Miasoied (Radio Physics and Radio Astronomy, 2020)