Here are a few articles you may enjoy.
What spelling tells us about the orthographic development and word study instruction with emergent bilingual secondary students. Darl Kiernan & Donald R. Bear
Here is a link to an article in the New England Journal of Reading. I think you’ll like it.
Ten Powerful Strategies to Practice Academic Language by Amy Frederick, Donald Bear, Karen Carpenter, Lori Helman, and Sarah Negrete https://www.dropbox.com/s/16ekuxhhbref94e/10%20Powerful%20Strategies.pdf?dl=0
Does an Established Model of Orthographic Development Hold True for English Learners? by Lori A. Helman, University of Minnesota & Donald R. Bear, University of Nevada, Reno https://www.dropbox.com/s/zondbysh0kugmmj/Helman%20Ber%20NRC%20paper%202007.pdf?dl=0
The title comes from To Kill a Mockingbird: Learning to fasten the seat of my union suit without looking around. (Chapter 2)
This is an old one, and examines writing speed and stages of spelling development: Copying Fluency and Orthographic Development, Bear, Donald R Visible Language; Winter 1991; 25, 1
This piece is a study on the effectiveness of some word study materials we’ve developed – a year-long study with 4th graders