Found:
multiple wh-fronting
SYNTAX: In some languages, all wh-elements in a multiple question must be fronted. EXAMPLE: The following example is from Bulgarian:
(i) Koj kogo kakvo e pital?
who whom what asked-3SG
'Who asked whom what?'
Rudin (1988) has noted that in multiple wh-fronting languages can be divided into two classes. In languages like Bulgarian, the wh-elements act like a cluster, while in languages like Czech and Polish, there seems to be a break after the first wh-element: adverbs and clitics can appear between the first wh-element and the others.
| LIT. | Richards, N. (1997) Rudin, C. (1988) |