but projects have been carried out, especially in relation to the communication aspects of environment work in the product chain, for example on raising awareness of products' environmental properties (environment - quality function deployment) (olesen, et al, 1997), on market-oriented environmental communication (arnfred, et al, 1997) and on environment dialogue (niemann, et al, 2000).

Please write the text above using proper case.
But projects have been carried out, especially in relation to the communication aspects of environment work in the product chain, for example on raising awareness of products' environmental properties (Environment - Quality Function Deployment) (Olesen, et al, 1997), on market-oriented environmental communication (Arnfred, et al, 1997) and on Environment Dialogue (Niemann, et al, 2000).