| Title | The 1980 eruptions of Mount St. Helens, Washington. Bulging of the north flank before the May 18 eruption - geodetic data |
| Publication Type | Journal Article |
| Year of Publication | 1981 |
| Authors | Lipman PW, Moore JG, Swanson DA |
| Journal | US Geological Survey Professional Paper |
| Volume | 1250 |
| Pagination | 143-155 |
| Keywords | Mt. St. Helens, Washington |