Castles, A., Coltheart, M., Wilson, K., Valpied, J., Wedgwood, J., The genesis of reading ability: What helps children learn letter-sound correspondences?, Journal of Experimental Child Psychology, Vol. 104, Issue 1.
Ehri, L.C., (2013) Orthographic Mapping in the Acquisition of Sight Word Reading, Spelling Memory, and Vocabulary Learning, Scientific Studies of Reading, 18(1), 5-21. https://doi.org/10.1080/10888438.2013.819356
Orthographic mapping (OM) involves the formation of letter-sound connections to cond the spellings, pronunciations, and meanings of specific words in memory. It explains how children learn to read words by sigh, to spell words from memory and to axquire vocabulary words from print.
Share, D.L. (2004) Knowing letter names and earning letter sounds: A causal connection. Journal of Experimental Child Psychology, Vol. 88, Issue 3, pp.213-233.
Two experiments tested the common assumption that knowing the letter names helps children learn basic letter-sound (grapheme-phoneme) relation because most letter names contain the relevant sounds. Letters with names containing the relevant sound facilitated letter-sound learning. The benefit of letter-name knowledge was found to depend, in part, on skill at isolating phonemes in spoken syllables.