The phrase "a basis for which" is correct and usable in written English.
It can be used when referring to a foundation or reason for something that follows, often in formal or academic contexts.
Example: "The research provides a basis for which further studies can be conducted to explore the implications of the findings."
Alternatives: "a foundation for which" or "a rationale for which".
Mr Klaus's office was also one of the first to condemn the speech, as one of the president's deputies said the speech "is a basis for which, combined with the Lisbon Treaty and the treacherously non-ratified Klaus opt-out, makes the door wide open for property claims raised by deported Germans".
"There's still some idea that we might use the House plan as a basis for which to proceed," he said.
This landmark was used as a basis for which sections were subsequently collected.
This review also has the potential to provide a basis for which future interventions can be evaluated.
Nor is the distinction upon which the deprivation is here based -- the distinction between large and small families -- one that readily commends itself as a basis for determining which children are to have support approximating subsistence and which are not.
The obtained model provides a basis for understanding which are the most important aggregating agents and, consequently, which are the better management systems to improve o recover the structure quality of soils with different textures.
"But I think after a while, we'll learn a basis for communication which will be acceptable," he said.
But it does seem to contain at least a basis for negotiation, which in the past has been missing.
Animalism is, to a large extent, a basis for totemism, which involves various permanent relationships of individuals or groups to certain animals or other natural objects; hence animalism is occasionally called "protototemism".
The argument is based on the importance of a dialogue among cultures as a basis for reciprocity, which leads to a cohesive society where solidarity includes the majority as well as the minority.
This provides a basis for selectivity which is desired against breast tumour cells.
