TY - JOUR T1 - The relationship between the sidereal variation at 570 hg/cm2 underground and different levels of solar activity JO - Planetary and Space Science UR - http://dx.doi.org/10.1016/0032-0633(92)90043-n PY - 1992/01/01 AU - Bergamasco L AU - Serio M AU - Castagnoli GC AU - Kudryavtsev VA AU - Kuznetsov VA AU - Ryazhskaya O ED - DO - DOI: 10.1016/0032-0633(92)90043-n PB - Elsevier BV VL - 40 IS - 8 SP - 1167 EP - 1182 Y2 - 2024/12/23 ER -