1 “... (observational) levels within a deep, well- focused and well-defined programme. The nature of the domain itself...”

2 “... and experimental or observational levels, within a deep and well defined programme, and a global unifying view...”

3 “... and cosmology, both at theoretical and experimental-or observational-levels, within a deep and well defined...”

4 “... and cosmology, within a deep a well defined programme, which provides, in addition, a careful...”

5 “... in these problems, both at the theoretical and experimental/observational levels, within a deep and well defined...”