@article{10_4064_cm_35_1_15_20,
     author = {John T. Baldwin and Joel Berman},
     title = {Varieties and finite closure conditions},
     journal = {Colloquium Mathematicum},
     pages = {15--20},
     publisher = {mathdoc},
     volume = {35},
     number = {1},
     year = {1976},
     doi = {10.4064/cm-35-1-15-20},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-35-1-15-20/}
}