York also collaborated with author Dean Wesley Smith on a pair of novellas based on the Bolo stories of late science-fiction author Keith Laumer, which were published in the anthologies Old Guard and Cold Steel, from Baen Books.
jˈɔːɹk ˈɔːlsoʊ kəlˈæbɚɹˌeɪɾᵻd wɪð ˈɔːθɚ dˈiːn wˈɛsli smˈɪθ ˌɔn ɐ pˈɛɹ ʌv nɑːvˈɛləz bˈeɪst ɔnðə bˈoʊloʊ stˈoːɹiz ʌv lˈeɪt sˈaɪənsfˈɪkʃən ˈɔːθɚ kˈiːθ lˈɔːmɚ, wˌɪtʃ wɜː pˈʌblɪʃt ɪnðɪ ænθˈɑːlədʒiz ˈoʊld ɡˈɑːɹd ænd kˈoʊld stˈiːl, fɹʌm bˈiːn bˈʊks.