Research Policy 1997
The technological competencies of the world's largest firms: Complex and path-dependent, but not much variety
open access
Abstract
An emitter insertable through the wall of a water pipe having a pair of striated skirts depending from opposed edges of the emitter outlet for irrigating soil at a constant rate of water flow despite variations in water pressure within the water pipe.
- DOI
- 10.1016/s0048-7333(97)00005-x
- Sources
- semanticscholar openalex