Effect of ozone and sulphur dioxide on mycorrhizae of Pinus halepensis Miller.

Díaz G, Barrantes O, Honrubia M, Gracia C (1996) Effect of ozone and sulphur dioxide on mycorrhizae of Pinus halepensis Miller. Annales des Sciences Forestières 53:849-856.

An inflatable minirhizotron system for stony soils.

López B, Sabaté S, Gracia C (1996) An inflatable minirhizotron system for stony soils. Plant and Soil 179:255-260.