1. Damage caused by Debris flows and slope collapses 2. Debris flow movement 3. Debris flow research 4. Surveying and planning for landslide prevention projects [video cassette] 

 - Japan  [date of publication not identified] 
 - 1 videocassette (60 min.) : sd. , col 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Landslide--Japan.