Influenced by a discussion with Arkady Strugatsky he changed his plan and began to work on the script based on Roadside Picnic.
ˈɪnfluːənst baɪ ɐ dɪskˈʌʃən wɪð ˈɑːɹkædi stɹuːɡˈætski hiː tʃˈeɪndʒd hɪz plˈæn ænd bɪɡˈæn tə wˈɜːk ɔnðə skɹˈɪpt bˈeɪst ˌɔn ɹˈoʊdsaɪd pˈɪknɪk.