2 papers found searching for titles, tags, and texts that contain "Katua"  (expanded to "(Katua|Ca Tua)").  Sorting results by frequency of citation.
Co-citations (either in / outside group):   1 by maier1969cua    top 5
Authoritative authors (most in group)   2 by Smith    top 5
Highly cited authors (by these papers)   1 of Smith    top 5
Publication hubs (for these papers)   2 by The Mon-Khmer Studies Journal    top 5

DJVU PDF Smith, Kenneth. 1973. "Eastern North Bahnaric: Cua and Kʔtua." In The Mon-Khmer Studies Journal, 4: 113-118. cite.
(1) First context: ... rice Exceptions in Katua *manār panul kanar ...STATS (1)
DJVU PDF Smith, Kenneth. 1986. "Some Vietnamese Kinship Terminologies." In The Mon-Khmer Studies Journal, 15: 21-86. cite.
(2) First context: ...through meta-thesis Katua Sedang and Cua kano...STATS