261
Published 1995
American Chemical Society

262
Published 1997
American Chemical Society

263
Published 1996
American Chemical Society

264
Published 1996
American Chemical Society

265
Published 1996
American Chemical Society

266
Published 1996
American Chemical Society

267
Published 1996
American Chemical Society

268
Published 1996
American Chemical Society

269
Published 1996
American Chemical Society

270
Published 1997
American Chemical Society

271
Published 1997
American Chemical Society

272
Published 1997
American Chemical Society

273
Published 1997
American Chemical Society

274
Published 1998
American Chemical Society

275
Published 1998
American Chemical Society

276
Published 1998
American Chemical Society

277
Published 1999
American Chemical Society

278
Published 1999
American Chemical Society

279
Published 1999
American Chemical Society

280
Published 1999
American Chemical Society