Though Knorr Cetina et al do not quote B L it is likely that they are familiar with their work since they have sociological backgrounds Further to this they might not have felt the need to since Berger and Luckman s ideas could be seen as another flowering of phenomenology with a sociological bent just like George Herbert Mead Alfred Schutz and Harold Garfinkel I think it was Berger who edited a collection from the 70s called Phenomenology an Sociology In this vein sociology of science seems to have a sociological phenomenolgy as an axiom considering David Bloor s Strong programme which I m sure at least one of Knorr Cetina et al will have cited Robat