Medvid О. M., Symotyuk, M. M. and Tymkiv, I. R. (2018) “METRICAL ESTIMATIONS OF DETERMINANT OF THE INTEGRAL PROBLEM FOR EQUATION OF VIBRATING OF STRING: Array”, PRECARPATHIAN BULLETIN OF THE SHEVCHENKO SCIENTIFIC SOCIETY. Number, (2(46), pp. 38–46. doi: 10.31471/2304-7399-2018-2(46)-38-46.