Observational issues in radiometric and interferometric detection and   analysis of the Sunyaev-Zel'dovich effects
  This review discusses the techniques used in single-dish and interferometric radiometric observations of the Sunyaev-Zel'dovich effects, the pitfalls that arise, the systematic and other sources of error in the data, and the uncertainties in the interpretation of the results. 
M. Birkinshaw and K. Lancaster