What is excluded from study
The aim or purpose of this study is not to …
… is or are not central to this study
… is or are not discussed in detail
… is beyond the scope of this study
… falls outside this study
…, which can only be discussed briefly here
…, only some of which can be discussed here
It excludes …
… is distinct from …
… was excluded from the study
While it would be interesting to examine … in greater detail, …
we have decided here to …
we have purposely excluded …
access to … is difficult
one problem inherent in … is …
For the purpose of this study, paper etc., we will confine the discussion to …
our priority here is to …
attention will be restricted here to …
I have restricted myself to …
the or my intention is not to …
It is not the task of this study to …
We make no claims here of or that …
I do not wish to imply by this study that …
Further references
A fuller discussion of … will appear in a later publication.
… will be taken up in a later publication
… see X (forthcoming)
… see X (in press)
references are given at the end of the paper
for further discussion see for example …
… is discussed in detail by or in X
see X for complete data
see X for a summary and references
For a survey or review of …, see X
For an in-depth review of …, see X
For further information on …, see X
For a more detailed examination of …, see X
For a bibliography of studies on …, see X