The text for Tam hde v nebi, the Slavonic original of this hymn, was printed in 1974 in a small booklet from the Sisters of Saint Basil the Great, Uniontown, PA, titled Pisňi vo čest’ Materi Božoj Neustajuščoj Pomošči – in other words, hymns for services to Our Lady of Perpetual Help.
One verse was printed (with an English translation) by Fr. William Levkulic in 1978. This hymn was NOT included in the 1985 Marian Hymnal, so I have had to rely on an unattributed manuscript for music.