Complex sentence: Secondly, Asubiaro, Toluwase V. (2014) Effects of Diacritics on Web Search Engines Performance for Retrieval of Yoruba Documents revealed that the use of the diacritics affect the retrieval of Yoruba documents by popular search engines.
Split into simpler sentences: Secondly, Asubiaro, Toluwase V. (2014) Effects of Diacritics on Web Search Engines Performance for Retrieval of Yoruba Documents. Journal of Library and Information Studies 12 (1), 1-19 revealed that the use of the diacritics affect the retrieval of Yoruba documents by popular search engines.