TY - RPRT TI - ON A POSSIBLE EXPLANATION OF THE LONG-TERM DECREASE IN SUNSPOT FIELD STRENGTH AU - Nagovitsyn, Yury A AU - Pevtsov, Alexei A PY - 2012 DO - 10.1088/2041-8205/758/1/l20 UR - https://www.osti.gov/biblio/22078498 ID - 22078498 ER -